患儿链球菌感染后1~3周易引起的疾病是()
A.肾病综合征
B.急性肾小球肾肾炎
C.化脓性脑膜炎
D.泌 * * 感染
E.川崎病
参考答案:B
The comments the expert made ____stock market bothered Bill greatly,_____him sleepless all night. [ ]
A. concerning; making
B. be concerned; which made
C. concerned; made
D. to be concerning; made
在荧光素标记抗体技术中,荧光素的抗体之间的结合是靠()。
A.范德华力
B.氢键
C.离子键
D.共价键
E.静电引力