在“特种货物机长通知单”的“CAO”栏中，如该危险品包装件是仅限货机的，那么在此栏内应以符号（）表示。
A.∏
B.∠
C.×
D.∈
参考答案：C
I can't tell the time because the ________of the clock have been removed.
A．hands
B．pointers
C．arms
D．fingers
You can borrow my car ________ you promise not to drive too fast.
A．as long as
B．even if
C．in case
D．unless
