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【单选题】
最常用的牙位记录方法为部位记录法,其中阿拉伯数字5代表A.
中切牙
B.
第一前磨牙
C.
第一磨牙
D.
第二前磨牙
E.
第二磨牙
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参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【多选题】下列说法正确的是
A.
函数在它的单叶性区域内反函数必是单值的。
B.
当从原点沿负实轴割开复平面之后，点z的辐角就可以唯一确定，即可以分出了Argz的单值分支。
C.
当变点z绕支点转一周后，函数值会发生变化，从一个分支跳到另一个分支。
D.
根式函数和对数函数在选定割线分出分支之后，每一个分支在定义域内都是解析的，并且求导公式为
【单选题】听力原文：W: Grace is so annoying, though she doesn't mean to hurt anybody. She is always correcting other peope. She thinks she is a know-it-all. M: I feel the same way. Though sometimes her comments are ...
A.
Annoying and mean.
B.
Kind and friendly.
C.
Intelligent but mean.
D.
Intelligent but annoying.
【简答题】Grace always exercises at six in the morning. ( 否定句 ) Grace ___________ exercises at six in the morning.
【单选题】The most important__________ of his speech was that we should all work wholeheartedly for the people.
A.
element
B.
spot
C.
sense
D.
point
【单选题】To keep fit, you should take more______ . Don’t be always busy doing your ______.
A.
exercise; exercise
B.
exercises; exercises
C.
exercises; exercise
D.
exercise; exercises
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