超声声像图图片应该怎么看?

Children won’t put on weight easily if they       to eat fruit and vegetables．

A．persuade

B．were persuaded

C．will be persuaded

D．are persuaded

Look at the sweat on her face. She________the house since she got up this morning.[ ]

A. is cleaning  

B. has been cleaned

C. was cleaning  

D. has been cleaning

若美元兑人民币的外汇牌价为8.1元/美元，影子汇率换算系数取值为1.08，计算美元的影子汇率为( )元/美元。

A．8.5
B．8.15
C．8.75
D．8.95

下列属于明代（指嘉靖、万历年间）后七子的是（）

A.李攀龙

B.王世贞

C.谢榛

D.宗臣

针对EDGE业务，MCS6编码方式的每PDCH理论流量为（）kbit/s。

A.15.6

B.17.6

C.20.2

D.22.4

E.29.6/27.2