【单选题】两正常人生了一个 Turner 综合症和色盲的孩子,这色盲基因大概发源于 。
【单选题】When does a pilot say “ Make all lines fast”? ________
A.
The ship is about to be in position
B.
The ship is very close to the berth
D.
The ship is in position
【单选题】两个正常人生了一个有 Turner 综合症( XO )和色盲的孩子,这个色盲基因大概发源于
【单选题】已知离子通道偶联的受体是通道蛋白的一种特殊类型,下列哪项说法错误:
B.
这类受体不仅对配体,而且激活的通道对运输的离子具有特异的选择性
【单选题】When does a pilot say make all lines fast ? He says it when().
A.
the ship is very close to the pier
B.
the ship is about to be in position
C.
the ship is in position
D.
the ship is getting alongside the pier