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【单选题】
方向都是变化的,则该物体的切向加速度____,法向加速度____。A.
等于0，等于0
B.
等于0，不等于0
C.
不等于0，等于0
D.
不等于0，不等于0
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举一反三
【单选题】Everyone was ( ) by the story about the dog.
A.
amused
B.
pleased
C.
entertained
D.
cheered
【单选题】Everyone was_ by_ his progress during the two months.
A.
surprised: surprised
B.
surprised: surprise
C.
surprising: surprising
D.
surprised: surprising
【单选题】《离骚》中的诗句( )指出了屈原的家世。
A.
帝高阳之苗裔兮,朕皇考曰伯庸。
B.
摄提贞于孟陬兮,惟庚寅吾以降。
C.
皇览揆余初度兮,肇锡余以嘉名。
D.
朝搴阰之木兰兮,夕揽洲之宿莽。
【简答题】Do you want to have a close friend? Do you know how to make a good friend? Now, let me tell you. Before you make friends, you have to decide who you want to be your friends. Most people like to have f...
【单选题】The set of answers which everyone was given______carefully checked by the supervisor.
A.
was
B.
are
C.
is
D.
were
【简答题】Let me _____. Don't make me _____. [ ] A. go .... cry B . go... to cry C. going ... crying
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