经常去图书馆或上网查询可以使药物信息（）
A．紧密结合临床
B．内容广泛多样
C．更新传递快速
D．做到去伪存真
E．提高药学水平
参考答案：C
I like this jacket better than that one, but it costs almost three times _______.
A．as much
B．as many as
C．so much as
D．so many
主港低潮潮高1.3m，并设：
则与所给主港潮高对应的主附港潮高差为（）。
A．＋0.2
B．0
C．-0.2
D．-0.3
