引起新生儿败血症和脑膜炎的主要病原菌为
A.A群链球菌B.B群链球菌C.肺炎链球菌D.肠球菌E.表皮葡萄球菌
参考答案:B
胃泌素瘤()
A.血清胃泌素升高
B.胃酸降低或缺乏
C.两者均有
D.两者均无
—How come you are always staring at me this morning?
—You look stupid! The way you wear is________ annoys me most.
A.which
B.where
C.how
D.what