When a line is subject to wear where it passes through a mooring chock，it should be（）.

A、wormed，parceled，and served

B、wrapped with heavy tape

C、wrapped with chafing gear

D、wrapped in leather

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更多“When a line is subject to wear where it passes through a mooring chock，it should be（）.”相关的问题

第1题

[] Examine the description of the MARKS table: STD_ID NUMBER(4) STUDENT_NAME VARCHAR2(30) SUBJ1 NUMBER(3) SUBJ2 NUMBER(3) SUBJ1 and SUBJ2 indicate the marks obtained by a student in two subjects. Examine this SELECT statement based on the MARKS table: SELECT subj1+subj2 total_marks, std_id FROM marks WHERE subj1 > AVG(subj1) AND subj2 > AVG(subj2) ORDER BY total_ marks; What is the result of the SELECT statement?（） Examine the description of the MARKS table: STD_ID NUMBER(4) STUDENT_NAME VARCHAR2(30) SUBJ1 NUMBER(3) SUBJ2 NUMBER(3) SUBJ1 and SUBJ2 indicate the marks obtained by a student in two subjects. Examine this SELECT statement based on the MARKS table: SELECT subj1+subj2 total_marks, std_id FROM marks WHERE subj1 > AVG(subj1) AND subj2 > AVG(subj2) ORDER BY total_ marks; What is the result of the SELECT statement?（）

A、A. The statement executes successfully and returns the student ID and sum of all marks for each student who obtained more than the average mark in each subject. B、B. The statement returns an error at the SELECT clause. C、C. The statement returns an error at the WHERE clause. D、D. The statement returns an error at the ORDER BY clause.

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第2题

[多选题] Examine the description of the MARKS table: STD_ID NUMBER(4) STUDENT_NAME VARCHAR2(30) SUBJ1 NUMBER(3) SUBJ2 NUMBER(3) SUBJ3 NUMBER(3) SUBJ1, SUBJ2, and SUBJ3 indicate the marks (grades) obtained by a student in the three subjects. Which two statements are valid? （）

A、SELECT SUM(subj1, subj2, subj3) FROM marks; B、SELECT SUM(subj1 + subj2 + subj3) FROM marks; C、SELECT SUM(subj1), SUM(subj2), SUM(subj3) FROM marks; D、SELECT MAX(subj1, subj2, subj3) FROM marks; E、SELECT MINIMUM(subj1) FROM marks; F、SELECT COUNT(std_id) FROM marks WHERE subj1 >= AVG(subj1);

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第3题

[] Given: When the doSomething method is called, after which line does the Object created in line 5 become available for garbage collection?（） Given: When the doSomething method is called, after which line does the Object created in line 5 become available for garbage collection?（）

A、A.Line 5 B、B.Line 6 C、C.Line 7 D、D.Line 8 E、E.Line 9 F、F.Line 10

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第4题

[单选题] The main advantage of a Chinese stopper over the one line stopper is that it（）.

A、will not jam on the mooring line B、is stronger C、is easier to use when under heavy tension D、is safer to use when under heavy tension

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第5题

[单选题] Examine the description of the MARKS table: STD_ID NUMBER(4) STUDENT_NAME VARCHAR2(30) SUBJ1 NUMBER(3) SUBJ2 NUMBER(3) SUBJ1 and SUBJ2 indicate the marks obtained by a student in two subjects. Examine this SELECT statement based on the MARKS table: SELECT subj1+subj2 total_marks, std_id FROM marks WHERE subj1 > AVG(subj1) AND subj2 > AVG(subj2) ORDER BY total_ marks; What is the result of the SELECT statement? （）

A、The statement executes successfully and returns the student ID and sum of all marks for each student who obtained more than the average mark in each subject. B、The statement returns an error at the SELECT clause. C、The statement returns an error at the WHERE clause. D、The statement returns an error at the ORDER BY clause.