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【单选题】
对形状复杂、截面变化大的钢件进行淬火时,用( )
A.
高淬透性钢,盐浴淬火
B.
中淬透性钢,盐浴淬火
C.
高淬透性钢,水淬
D.
中淬透性钢,水淬
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举一反三
【单选题】'You've put a bug in his ear' means that you've ______.
A.
hurt him
B.
given him some kind of warning
C.
embarrassed him
D.
shown concern for him
【判断题】由于竞争的结果,两个相似的物种不能占有相似的生态位,而是以某种方式彼此取代,使每一物种具有食性或其他生活方式上的特点,从而在生态位上发生分离的现象,这一假说称为高斯假说。 prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
正确
B.
错误
【单选题】I am very grateful to you for what you’ve given me and __________ you have done for me
A.
which
B.
that
C.
all what
D.
all that
【多选题】中纬度系统的温压场结构的基本特征有()。
A.
地面低压中心位于高空槽前脊后
B.
地面高压中心位于高空槽正下面
C.
高空温度槽脊落后于气压槽脊
D.
锋面随高度向冷区倾斜
【单选题】I know that you’ve given me a rise in my pay, but I still think it’s enough for what I’ve done for your company.
A.
nowhere near
B.
somewhere near
C.
anywhere from
D.
everywhere about
【单选题】发展必不可少的条件是:
A.
地面气旋对应高空槽
B.
地面气旋处在高空槽前,槽前有冷平流,槽后有暖平流
C.
地面气旋对应高空脊
D.
地面气旋处在高空槽前,槽前有暖平流,槽后有冷平流
【简答题】两个相似的物种由于竞争的结果不能占有相同的______。
【单选题】Bob: Would you like a cigarette? Jason: No, thank you. I've given up smoking. Bob:_______
A.
Ok.Go ahead and do it
B.
All right.Take care.
C.
Well,you don't mind if I have one,do you?
D.
Sorry,have another one then.
【简答题】-----You’ve given us a wonderful Chinese dinner, Mrs Wang. -------__________. a. I’m glad you enjoyed it b. Oh, I’m afraid I didn’t cook very well c. Come again when you are free. d. It’s not necessar...
【单选题】*锋面气旋发生、发展必不可少的条件是________。
A.
地面气旋对应高空槽
B.
地面气旋处在高空槽前,槽前有冷平流,槽后有暖平流
C.
地面气旋对应高空脊
D.
地面气旋处在高空槽前,槽前有暖平流,槽后有冷平流
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