下列哪种生物不属于我国特有的珍稀动植物 [ ]
A.银杉
B.珙桐
C.黑猩猩
D.扬子鳄
答案:C
-___________. Jim?
-I have a headache and a fever. [ ]
A. What's the matter
B. What's the wrong
C. What the matter
D. What wrong
新生儿易出现溢乳的原因之一是
A.肠壁较薄,通透性高
B.贲门括约肌较发达
C.胃呈水平位
D.幽门括约肌发育差
E.消化道面积相对较大