锅水的含盐量越大,容易被蒸汽带走的水滴就()。
A.越多
B.越少
C.不变
参考答案:A
_____ his wife's advice, he wouldn't have lost his job.[ ]
A. If he followed
B. If he should follow
C. Had he followed
D. Did he follow
我国现存最早的一部医书是()。
A.《黄帝内经》
B.《神农本草经》
C.《齐民要术》
D.《本草纲目》