检查之间的最短时间是两分钟。 A: The minimum time between checks is two minutes. B: Allow at least two minutes between successive checks. C: The least interval between successive checks is two minutes.

允许连续检查之间至少间隔两分钟。 A: The minimum time between checks is two minutes. B: Allow at least two minutes between successive checks. C: The least interval between successive checks is two minutes.

An person must do important checks. A: An approved<br/>person must do the important checks. B: A qualified<br/>person must do the important checks. C: A trained<br/>person must do the important checks.

关键的检查必须由授权的人来进行。 A: An approved<br/>person must do the important checks. B: An allowable<br/>person must do the important checks. C: An authorized<br/>person must do the important checks. D: An capable<br/>person must do the important checks.

The planes have to undergo _____ safety checks.

Some hotels accept guests’ personal checks.

He wanted to know（ ）in cash or with traveler′s checks.

The G1/S checkpoint checks ( ).

The police must be careful and calm when conducting security checks.

Traveler’s checks are negotiable instruments. ( )