A．The teacher must learn everything by heart.B．He knows to control his voice better tha
A. The teacher must learn everything by heart.
B. He knows to control his voice better than an actor.
C. He has to deal with unexpected situations.
D. He has to use more facial expressions.
查看答案
A．The audience might be mostly his friends.B．He had to listen to the orchestra.C．He mig
A. The audience might be mostly his friends.
B. He had to listen to the orchestra.
C. He might not understand the clue.
D. He might not remember what he should say on the stage.
A．It is the largest of all the pyramids.B．It is older than other pyramids.C．It took the
A. It is the largest of all the pyramids.
B. It is older than other pyramids.
C. It took the Egyptian 20 years to finish it.
D. It is about 144 meters high.
听力原文：Can you wait for me at the bus station？
(14)
A. Sorry, I can't.
B. Yes, please.
C. I'm OK.
若定点整数64位，含1位符号位，用补码表示，则所能表示的绝对值的最大负数为()。
A. 一264
B. 一(264-1)
C. 一263
D. 一(263-1)
微信支付 
支付宝支付