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【单选题】
测定淬火钢的硬度,一般常选用()来测试。A.
布氏硬度计
B.
洛氏硬度计
C.
维氏硬度计
D.
努氏硬度计
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举一反三
【单选题】下列关于挥发分的描述不正确的是( )。
A.
煤的挥发分随煤化程度的加深而减少
B.
煤化程度越浅，挥发分开始析出的温度越低
C.
含氧量高、煤化程度低的煤，挥发分发热量比较高
D.
挥发分含量高的煤，着火迅速，燃烧稳定，易于燃烧完全
【单选题】Awoman has ,to be______a man to go half as far.
A.
twice as good as
B.
as twice good as
C.
twice good as
D.
twice so good as
【单选题】ActiveX is the name(66)has given to a set of object-oriented concepts, technologies, and tools. It is important to notice that ActiveX is not a(67)technology, but a brand name, what it's applied to ca...
A.
HP
B.
Cisco
C.
SUN
D.
Microsoft
【单选题】下列关于豆类的描述不正确的是
A.
豆类可分为大豆类和其他豆类
B.
大豆的蛋白质含量为35％左右，含有人体所需的全部氨基酸，为优质蛋白
C.
大豆蛋白质赖氨酸含量较多，蛋氨酸较少，与粮谷类食物混合食用，能发挥蛋白质的互补作用
D.
豆类中，大豆的脂肪含量最低
【单选题】The little town has now grown into a modern big city, and is _____ what it used to be. [ ]
A.
twice the size than
B.
two times the size as
C.
twice the size as
D.
twice the size of
【简答题】He has seen that film twice ______
【单选题】The production of the factory has grown to _____ in 1999.
A.
twice as it was
B.
twice what it was
C.
as twice as it was
D.
twice that it was
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