Given： What is the result？（） ["Cat","Dog","Compilation fails.","The code runs with no output.","An exception is thrown at runtime."]
原子力显微镜
阿托品作用于何受体（） ["M受体","N1受体","N2受体","H1受体","H2受体"]
Which three are valid？（） ["p0=p1；","p1=p2，","p2=p4；","p2=（ClassC）p1；","p1=（ClassB）p3；","p2=（ClassC）p4；"]
马斯洛需要层次论认为人类的基本需要包括（） ["生理需要","安全需要","爱和归属的需要","尊重的需要","自我实现的需要"]
简述沦陷区文学的基本特点。
