That is _________. This is _________. [ ]
A. his, mine
B. he, me
C. his, my
答案:A
He began to take political science only when he left school.
A.strictly
B.truly
C.carefully
D.seriously
婴幼儿上呼吸道解剖特点是()
A.鼻窦口相对较大
B.鼻腔短而狭窄,粘膜柔嫩,血管丰富
C.咽部狭窄而垂直
D.喉腔较窄,粘膜柔嫩富有血管
E.咽鼓管较宽、直、短,呈水平位