异烟肼中游离肼的检查采用()
A.薄层色谱法
B.高效液相色谱法
C.气相色谱法
D.比色法
E.紫外分光光度法
参考答案:A
He collected information on 1,000 people, whose IQ when they were ten years old.[ ]
A.is tested
B.has tested
C.would test
D.had been tested
在张艺谋拍摄的影片《有话好好说》中饰演“安红”的是我国内地哪位女明星?()
A.瞿颖
B.章子怡
C.范冰冰
D.杨颖