A、Both vessels must be power-driven
B、They must be meeting on reciprocal or nearly reciprocal courses
C、The situation must involve risk of collision
D、All of the above
更多“Rule 14 describes the action to be taken by vessel meeting head-on. Which of the following conditions must exist in order for this rule to apply?（）.”相关的问题
A、# acl number 2005 rule 0 permit source192.168.99.1020 rule 1 deny source192.168.99.00.0.0.255# B、#acl number 2005 rule 0 deny source192.168.99.00.0.0.255 rule 1 permit source192.168.99.1020# C、#ac lnumber 2005 rule0 deny source192.168.99.1020 rule 1permit source192.168.99.00.0.0.255# D、#ac lnumber 2005 rule 0 permit source192.168.99.00.0.0.255 rule 1 deny source192.168.99.1020#
A、A.IL-12分泌过多，使得Th0不能向Th1细胞分化 B、B.IL-12分泌不足，使得Th0不能向Th1细胞分化 C、C.IL-12分泌过多，使得Th0向Th2细胞分化 D、D.IL-12分泌不足，使得Th2向Th1细胞分化 E、E.IL-12分泌过多，使得Th2不能向Th1细胞分化
A、The DESCRIBE DEPT statement displays the structure of the DEPT table. B、The ROLLBACK statement frees the storage space occupies by the DEPT table. C、The DESCRIBE DEPT statement returns an error ORA-04043: object DEPT does not exist. D、The DESCRIBE DEPT statement displays the structure of the DEPT table only if there is a COMMIT statement introduced before the ROLLBACK statement.
A、rule permit ip icmp-type echo B、rule permit ip source-port eq 1024 C、rule permit ip tos normal dscp ef D、rule permit udp time-range udp
A、The DESCRIBE DEPT statement displays the structure of the DEPT table. B、The ROLLBACK statement frees the storage space occupied by the DEPT table. C、The DESCRIBE DEPT statement returns an error ORA-04043: object DEPT does not exist. D、The DESCRIBE DEPT statement displays the structure of the DEPT table only if there is a COMMIT statement introduced before the ROLLBACK statement.
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