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【单选题】
绘图比例是:A.
图形与实物相对应的线性尺寸之比
B.
实物与图形相对应的线性尺寸之比
C.
比例尺上的比例刻度
D.
图形上尺寸数字的换算系数
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反馈参考答案：
举一反三
【简答题】若∫ 0 1 dx∫ x 2 x 3 f(x,y)dy=∫ 0 1 dy∫ x 1 (y) x 2 (y) f(x,y)dx 则 (x 1 (y)，x 2 (y))=______
【单选题】It's necessary that each child_____ the rules.
A.
must obey
B.
still obey
C.
obeys
D.
obey
【单选题】It's necessary that an arbitration clause ______ in the contract.
A.
will be included
B.
must be included
C.
be included
D.
has been included
【单选题】It's necessary that the plan _____ before Thursday.
A.
were fulfilled
B.
was fulfilled
C.
be fulfilled
D.
would be fulfilled
【简答题】比较大小：∫ 0 1 x 2 dx______∫ 0 1 x 3 dx
【简答题】已知I 1 =∫ 0 1 x 2 dx，I 2 =∫ 0 1 x 3 dx，则I 1 ______I 2 (填“＞”“＜”“=”)。
【单选题】It's necessary that everyone his homework by the end of this week.
A.
hands in
B.
hand in
C.
must hand in
D.
would hand in
【多选题】下列关于组织学与胚胎学的地位和作用描述正确的是
A.
组织学促进了生理学的进步
B.
组织学是病理学的基础
C.
组织学可以培养空间思维能力
D.
胚胎学是畸形学的基础
E.
胚胎学用科学阐述了生命个体的发生，发育
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