影响青霉素排泄的药物是
A.红霉素
B.氯霉素
C.丙磺舒
D.克拉维酸
E.甲氧苄啶
参考答案:C
解析:青霉素与丙磺舒均通过肾排泄,二者在排泄上存在竞争。
质量相同的Na、Mg、Al、K四种金属,含原子数最少的是
A.Na
B.Mg
C.Al
D.K
The employee you had been thinking highly________dishonest.[ ]
A. of proving
B. of proved
C. of to prove
D. of being proved