发热3—4天出疹，疹间皮肤正常，出疹期热更高，为（）。
A．幼儿急疹
B．麻疹
C．风疹
D．水痘
E．猩红热
参考答案：B
More than _______ students in our school did their best to raise money for the quake-hit areas.[ ]
A. two thousands
B. two thousand
C. thousands
D. thousand
中压配电网的电压一般在（）。
A.35~110KV
B.6~20KV
C.1~3KV
D.380/220V
