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【简答题】
已知一标准直齿圆柱齿轮的齿数z=72,全齿高h=18mm,则齿轮的模数m=______________,分度圆直径d=_____________。
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反馈参考答案：
举一反三
【单选题】Word formation excludes _____.
A.
affixation and compounding
B.
conversion and shortening
C.
cipping, acronymy and blending
D.
repetition and alliteration
【简答题】Most people attending his lecture have found that they have learned something (use) ______.
【简答题】看图填空。 Word List: pigs two four cows chickens 1. Three ______________ are on the farm. 2. ______________ ducks are in the pond. 3. Two ______________ are on the farm. 4. ______________ ____...
【单选题】As put by the author, most of the work that most people have to do is ______.
A.
exceedingly dull and always painful
B.
delightful but time consuming
C.
not worth doing and not bearable at all
D.
not interesting but very rewarding
【简答题】Word building3
【单选题】根据下列选项，请回答下列各题：
A.
每100ml相当于原药材100g
B.
每100ml相当于原药材20g
C.
每100ml相当于原药材10g，或根据其半成品含量加以调整
D.
每100ml含被溶物85g
E.
每1g相当于原药材2～5g 除另有规定外，含剧毒药酊剂的浓度为
【判断题】一台热机工作在T 1 =1000K和T 2 =400K的两个恒温热源间，热机从高温热源T 1 吸热1000kJ，向冷源T 2 放热300kJ，则该热机是不可能实现的。( )
A.
正确
B.
错误
【单选题】Which of the following word shares the similar meaning with the word "compel"?
A.
force
B.
undertake
C.
support
D.
increase
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