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【单选题】
用扳手拧紧螺母属于( )A.
力的作用
B.
力矩作用
C.
力偶作用
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举一反三
【简答题】Efforts to cope with the problems in the cr period gradually provide sojourners with new ways to live in the new culture. Sojourners begin to learn how to _______ and _______ appropriately to the ...
【单选题】下列说法中正确的是（ ）
A.
“海市蜃楼”和“彩虹”这两种自然现象，形成的原理是完全一样的
B.
区别优质煤炭最科学的方法是检测热值
C.
地球上的生物质能、核能、地热能等都是来自于太阳能
D.
物体的内能增加，一定从外界吸收了热量，它的温度可能升高
【单选题】What are the crises Anna has to cope with after body switch?① desperate patients ② a parent-teacher conference ③ a surprise television talk appearance ④ Ryan’s efforts to kiss her
A.
①②③
B.
①②③④
C.
②③④
D.
①③④
【单选题】I know you've had a difficult year and I've been very impressed with your efforts to cope with it.
A.
a
B.
b
C.
c
D.
d
E.
e
F.
f
【简答题】雨过天晴，天空出现美丽的彩虹是由于光的______形成的；“三峡大坝”上的船闸是应用______原理工作的；家中的保险丝熔断了是因为______ 造成的．
【单选题】What are the crises Anna has to cope with after body switch ? 1 desperate patients 2 a parent-teacher conference 3 a surprise television talk appearance 4 Ryan’s efforts to kiss her
A.
①②③
B.
①②③④
C.
②③④
D.
①③④
【单选题】Xie Zhenhua, China’s special representative on climate change, made the remarks at a press conference ____ he released a report on China’s efforts to cope with climate change.
A.
where
B.
which
C.
why
D.
when
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