The penguins are interesting. [ ]
A. kinds
B. kind.
C. kinds of
D. kind of
答案：D
The factory ______ its waste into the river, but now it deals with the waste in a new way. [ ]
A. used to dump
B. is used to dump
C. used to dumping
D. is used to dumping
2岁半患儿，不规则发热1个月余，一般情况较差。查体：胸骨左缘第3、4肋间可闻及Ⅳ级收缩期杂音，P2亢进，双肺呼吸音清，肝右肋下2.5cm，脾肋下1.5cm，ESR50mm／h，WBC18×10／L，N0.89，L0.11，血培养（-）。
目前的主要检查是（）
A.复查ESR
B.再做血培养
C.反复查血象
D.心脏彩超
E.照胸片
