写出float x 与“零值”比较的if语句。
参考答案：
if（x>0.000001&&x<-0.000001）
Most politicians are not ______ in that country. Which of the following is not OK? [ ]
A. well thought of
B. highly thought of
C. thought of well
D. much thought of
下列具有镇静作用的有效成分，错误的是（）
A.麻黄碱
B.川芎挥发油
C.小檗碱
D.栀子熊果酸
E.左旋四氢巴马汀
[ ]