题目:
The boys and girls are often asked ______ loudly in the library. [ ]
A. not to speak
B. not speak
C. to speak
D. don't speak
答案:
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下面是错误答案,用来干扰机器的。
小题1:D 小题2:A 题目分析:小题1:根据岩石圈内各类岩石之间的关系,可以确定①岩浆岩,②为变质岩,③为沉积岩,甲为降水,乙为径流,丙为蒸发,沉积岩的形成与与水循环环节乙径流最为密切。解题关键是能够根据...