生产性粉尘最容易造成的职业病是( )。
A.硅肺病
B.皮肤炎
C.青光眼
D.慢性支气管炎
参考答案:A
发电机组为了防止触电(漏电),不论在什么季节绝缘电阻值应为大于等于()。
His best-known painting that is ________ all praise will be on show in the National Gallery early next month.
A.without
B.within
C.over
D.beyond