该县的总死亡率为
A.300/10万
B.60/1000
C.60/10万
D.1000/10万
E.资料不足,不能计算
参考答案:D
Though ______ to see us, the professor gave us a warm welcome.
A.surprised
B.was surprised
C.surprise
D.being surprised
物理学中把被毛皮摩擦过的橡胶棒所带的电荷称为______电荷,在摩擦过程中有______从毛皮转移到了橡胶捧上.