关于姜片虫病，血象可见（）
A.中性粒细胞增高
B.白细胞总数降低
C.轻度贫血
D.嗜酸性粒细胞增高
E.血小板减少
参考答案：C, D
It was seven o'clock ____I got to school this morning, ____ made our teacher very angry. [ ]
A. when; that
B. that; that
C. that; when
D. when; which
在倾斜入射的情况下，当入射角α在40°～60°时反射横波的强度可以超过反射纵波的强度。
