皮皮学,免费搜题
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搜题
【单选题】
齿轮泵最主要的内漏泄发生在?
A.
齿轮端面间隙
B.
齿顶间隙
C.
啮合齿之间
D.
轴封
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【判断题】婴幼儿语言词汇、记忆力、认知、推理和社会交往的能力不断提高是生理方面
A.
正确
B.
错误
【单选题】下列每组划线词语含义相同的一项是
A.
道之所存, 师 之所存        圣人无常 师
B.
呼儿 将 出换美酒 将 进酒
C.
妇女无所 幸 故 幸 来告良
D.
吾尝 终 日而思矣 终 刚强兮不可凌
【简答题】Directions: In this section, you are going to read a passage with ten statements attached to it. Each statement contains information given in one of the paragraphs. Identify the paragraph from which t...
【单选题】下列方程的变形中,正确的是(     )
A.
方程 ,移项,得
B.
方程 ,去括号,得
C.
方程 ,未知数系数化为1,得
D.
方程 化成
【单选题】下列方程中变形正确的是(     ) ① 4x+8=0变形为x+2=0;    ② x+6=5-2x变形为3x=-1; ③ =3变形为4x=15;           ④ 4x=2变形为x=2
A.
①④
B.
①②③
C.
③④
D.
①②④
【简答题】On February 12, 2010, British Prime Minister Mr. _____ _____ took part in a video-conference with UN _____ _____ Ban Ki-moon and Prime Minister Meles Zenawi of Ethiopia to launch a High Level Advisory...
【简答题】A United Nations organization is working to help (1)_____ countries become active partners in the world (2) ________ . The UN Conference on Trade and Development says recent financial unrest shows the...
【简答题】On February 12, 2010, British Prime Minister ____ took part in a video-conference with UN ____ Ban Ki-moon and Prime Minister Meles Zenawi of Ethiopia to launch a High Level Advisory Group on____.
【单选题】下列方程中 , 变形正确的是 ( )
A.
由3x-2=4,得3x=4-2
B.
由2x+5=4x-1,得2x-4x=1-5
C.
由 - x=2, 得x=8
D.
由 x=-2, 得x=-3
【单选题】International environmental law has evolved over at least four distinct periods. The second period began with the creation of the UN in 1945 and _________with the UN Conference on the Human Environmen...
A.
competence
B.
culminated
C.
provisions
D.
of
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