客户机和服务器分别指向( )个服务器。
A) 1 B) 2 C) 3 D) 4
参考答案：B
解析： 客户机和服务器分别指向2个服务器。所以答案为B)。
It seems that this medicine has a good effect on the patient, ________he may die in great pain.
It seems that this medicine has a good effect on the patient,
he may die in great pain.
A．when
B．where
C．by which
D．without which
室内燃气管道如何进行强度试验？
