The college entrance exam is ______ important to the student, and it’s also challenging.

A．no more than

B．no less than

C．more than

D．not more than

肺炎所致酸碱失衡的患儿可出现（）。

A.代谢性酸中毒

B.代谢性碱中毒

C.呼吸性酸中毒

D.呼吸性碱中毒

E.代谢性酸中毒和呼吸性酸中毒