__________ clear information concerning the -考呗网题库移动版

单选题
__________ clear information concerning the nature of the problem, it will be impossible forthe marketing team to formulate a solution.

A．Without
B．Because of
C．Except
D．Regarding

参考答案A

解析: 根据选项可知此题为选择恰当的介词的问题。

单选题
All workers should carry out their normal duties during the safety inspection tomorrow__________ otherwise instructed,

A．through
B．unless
C．despite
D．about

单选题
Passengrs can __________ the amount of light they receive by using the black switch located on their overhead panel.

A．supervise
B．control
C．exchange
D．trade

单选题
__________ fully staffed, the office will have to accommodate the workspace and equipmentneeds of over sixty workers.

A．When
B．In
C．Though
D．With