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【单选题】

The （）is out of order. We must have someone to repair it at once.

A、stevedore

B、foreman

C、derrick

D、docker

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更多“The （）is out of order. We must have someone to repair it at once.”相关的问题
第1题
[单选题] In the closed cooling system, the water （）.

A、is made to circulate out of the system  B、is made to circulate within the system  C、is made circulate within the system  D、is made circulate out of the system  

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第2题
[单选题] Preventive maintenance （）.

A、should not be carried out during the watches  B、can only be carried out in port  C、is a kind of maintenances carried out prior to the occurrence  D、is a kind of maintenances carried out after the occurrence  

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第3题
[] The latch of a safety hook（）.

A、A.increases the strength of the hook  B、B.prevents the sling ring from coming out of the hook if the strain is abruptly eased  C、C.prevents the sling ring from coming out of the hook if there is a strain on the sling ring  D、D.All of the above  

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第4题
[单选题] When the power is shut off, the wire（）

A、becomes slack  B、can not be paid out unless the brake is overhauled or recover wire unless manually operated  C、will be let out because the brake is out of work  D、may be pay out due to no power  

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第5题
[] Click the Exhibit button and examine the data from the ORDERS and CUSTOMERS tables. Evaluate this SQL statement: SELECT cust_id, ord_total FROM orders WHERE ord_total > ANY(SELECT ord_total FROM orders WHERE cust_id IN (SELECT cust_id FROM customers WHERE city LIKE'New York')); What is the result when the above query is executed?（） Click the Exhibit button and examine the data from the ORDERS and CUSTOMERS tables. Evaluate this SQL statement: SELECT cust_id, ord_total FROM orders WHERE ord_total > ANY(SELECT ord_total FROM orders WHERE cust_id IN (SELECT cust_id FROM customers WHERE city LIKE'New York')); What is the result when the above query is executed?（）

A、A.A  B、B.B  C、C.C  D、D.D  E、E.E  

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第6题
[多选题] On your Oracle Database, you issue the following commands to create indexes: SQL > CREATE INDEX oe.ord_customer_ix1 ON oe.orders (customer_id, sales_rep_id) INVISIBLE; SQL> CREATE BITMAP INDEX oe.ord_customer_ix2 ON oe.orders (customer_id, sales_rep_id); Which two statements are true?（）

A、Only the ORD_CUSTOMER_IX1 index created.  B、Both the indexes are updated when a row is inserted, updated, or deleted in the ORDERS table.  C、Both the indexes are created: however, only ORD_CUSTOMERS_IX1 is used by the optimizer for queries on the ORDERS table.  D、The ORD_CUSTOMER_IX1 index is not used by the optimizer even when the OPTIMIZER_USE_INVISIBLE_INDEXES parameters is set to true.  E、Both the indexes are created and used by the optimizer for queries on the ORDERS table.  F、Both the indexes are created: however, only ORD_CUSTOMERS_IX2 is used by the optimizer for queries on the ORDERS table.  

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第7题
[单选题] An index called ORD_CUSTNAME_IX has been created on the CUSTNAME column in the ORDERS table using the following command: SQL>CREATE INDEX ord_custname_ix ON orders(custname); The ORDERS table is frequently queried using the CUSTNAME column in the WHERE clause. You want to check the impact on the performance of the queries if the index is not available. You do not want the index to be dropped or rebuilt to perform this test.Which is the most efficient method of performing this task?（）

A、disabling the index  B、making the index invisible  C、making the index unusable  D、using the MONITORING USAGE clause for the index  

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第8题
[单选题] Which statement correctly applies to a situation where a sailing vessel is overtaking a power-driven vessel（）.

A、The power-driven vessel must keep out of the way of the sailing vessel  B、A special circumstance situation exists  C、The sailing vessel must keep out of the way of the power- driven vessel  D、The vessel which has the other vessel to the right must keep out of the way  

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第9题
[单选题] Sorry, the ladder is（） my reach.

A、out  B、out off  C、out of  D、out to  

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第10题
[多选题] On your Oracle 12c database, you Issue the following commands to create indexes SQL > CREATE INDEX oe.ord_customer_ix1 ON oe.orders (customers_id, sales_rep_id) INVISIBLE; SQL> CREATE BITMAP INDEX oe.ord_customer_ix2 ON oe.orders (customers_id, sales_rep_id); Which two statement are correct?（）

A、Both the indexes are created; however, only the ORD_COSTOMER index is visible.  B、The optimizer evaluates index access from both the Indexes before deciding on which index to use for query execution plan.  C、Only the ORD_CUSTOMER_IX1 index is created.  D、Only the ORD_CUSTOMER_IX2 index is created.  E、Both the indexes are updated when a new row is inserted, updated, or deleted In the orders table.  

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