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【简答题】
先化简再求值 2x 2 -y 2 +（2y 2 -x 2 ）-3（x 2 +2y 2 ），其中x=3，y=-2．
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举一反三
【单选题】I will put the book you placed it and make a mark at the place I put it.
A.
where; at which
B.
at which; where
C.
where; which
D.
at which; at which
【单选题】赵先生，55岁，诊断为2型糖尿病，身体一般状况尚好。护士进行评估后，建议赵先生做有氧运动，为掌握好运动量，运动时适宜的心率应该是
A.
110次/min
B.
115次/min
C.
120次/min
D.
125次/min
E.
130次/min
【简答题】银行汇票持票人向银行提示付款时，必须同时提交银行汇票和支款凭证。
【简答题】银行汇票持票人向银行提示付款时，必须同时提交银行汇票和（ ）。
【单选题】赵先生,55岁,诊断为2型糖尿病,身体一般状况尚好。护士进行评估后,建议赵先生做有氧运动,为掌握好运动量,运动适宜的心率应该是
A.
110次/分
B.
115次/分
C.
120次/分
D.
125次/分
E.
130次/分
【单选题】Which of the following statement about "Heal the world" is Not true?
A.
It was releasead in 1992.
B.
It was from the album “Thriller”.
C.
It was written and composed by Michael Jackson.
D.
It was said to be the song that Michael Jackson was most proud to have created.
【单选题】I will put the book________you placed it and make a mark at the place________I put it.
A.
where；at which
B.
at which；at which
C.
where；which
D.
at which；where
【单选题】病人,男性,55岁,诊断为2型糖尿病,身体一般,状态尚好,护士进行评估后,建议赵先生做有氧运动,为掌握好运动量,运动时适宜的心率应该是
A.
110次/分
B.
115次/分
C.
120次/分
D.
125次/分
E.
130次/分
【简答题】银行汇票持票人向银行提示付款时，必须同时提交银行汇票和（ ）。
【单选题】The book has lost its cover. I will put a new ______ on it.
A.
cover
B.
ones
C.
one
D.
piece
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