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【简答题】
短文语法填空,然后背诵短文,熟记本单元的重点词汇。 Wildlife Protection Dinosaurs died out because of an unexpected incident.But wildlife today __1__(disappear) or is in danger just because humans do harm to it.For example,tigers arehunted for fur to make carpets so that they can only live in secure reserves;grassland __2__(destroy) without mercy so that dust storms come into being __3__(affect) distantcities. Last year,scientists saw some __4__(monkey) rubbing themselves with a certain kind ofinsects to protect __5__(them) from fierce mosquitoes biting.According to the result of theinspection,they found that the insect contains a __6__(power) drug,so local farmers wereemployed to catch the insects.The ending was __7__ the insects disappeared from the wholezone.When told that it was a __8__(lose) to humans,the farmers burst into laughter andresponded,“Our real loss is our decreasing income.” We should appreciate the natural balance and pay __9__ (much) attention to theimportance of wildlife protection than before.Not until we succeed in letting wildlife live __10_peace,can we smile in relief.
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【多选题】矩形齿离合器铣削完后槽底未接平,有较明显的凸台,其主要原因是( )。
A.
立铣头轴线与工作台面不垂直
B.
分度头主轴与工作台面不垂直
C.
盘铣刀圆柱面齿刃口缺陷;立铣刀端刃缺陷
D.
升降工作台走动
E.
刀轴松动或刚性差
【单选题】We thought of selling this old furniture, but we've decided to _____ it, It might be valuable. [      ]
A.
hold on to
B.
keep up with
C.
turn to
D.
look after
【简答题】( )是对整个受控系统进行全面控制
【判断题】建筑物估价时,自然耐用年限一般要短于经济耐用年限( )
A.
正确
B.
错误
【单选题】下列选项为SATA接口的特点的是()。
A.
接口体积小
B.
并行传输
C.
高电压
D.
5引脚
【单选题】下列选项为SATA接口的特点的是(A)
A.
接口体积小
B.
并行传输
C.
高电压
D.
5引脚
【判断题】乳儿的动作起初是无意的,当他做出各种动作时,既无目的也不知道自己在干什么。3个月以后逐渐出现有目的的动作。你认为这种观点
A.
正确
B.
错误
【单选题】We thought of selling this old furniture, but we've decide to ______itIt might be valuable.
A.
hold on to
B.
keep up with
C.
turn to
D.
look after
【单选题】建筑物估价时,经济耐用年限一般短于自然耐用年限。
A.
正确
B.
错误
【单选题】圆刀片立铣刀主要用于铣削根部有内圆角的凸台、()和型腔以及曲面。
A.
斜面
B.
平面
C.
筋条
D.
带角度沟槽
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