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【单选题】
植物细胞培养与动物、微生物细胞培养的最主要不同点是A.
培养周期长
B.
营养要求简单
C.
需要光照
D.
有寿命限制
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举一反三
【单选题】When a seafarer is on call, the seafarer shall have _______ if the normal period of rest is disturbed by call-outs to work.
A.
not any compensatory rest period
B.
an adequate compensatory rest period
C.
triple rest period
D.
double rest period
【单选题】l61. When a seafarer is on call, the seafarer shall have ___ if the nornal period of rest is disturbed by call-outs to work.
A.
not any compensatory rest period
B.
an adequate compensatory rest period
C.
triple rest period
D.
double rest period
【单选题】不符合阴道解剖特点的是
A.
阴道上宽下窄
B.
阴道前短后长
C.
阴道环绕宫颈部分称为穹窿
D.
阴道黏膜皱襞少，伸展性小
E.
阴道是性交器官，也是经血排出和胎儿娩出通道
【单选题】【单选】When a seafarer is on call, the seafarer shall have _________ if the normal period of rest is disturbed by call-outs to work.
A.
not any compensatory rest period
B.
triple rest period
C.
an adequate compensatory rest period
D.
double rest period
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