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【单选题】
12 Questions 9 to 12 are based on the conversation you have just heard.
A.
Cages should be removed from the zoos.
B.
Wild animals should not be rescued.
C.
Animals should live their own way.
D.
Zoos should not prolong animals' life.
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【简答题】数控机床导轨按运动轨迹可分为 导轨和 导轨。
【判断题】导轨按运动轨迹可分为开式导轨和闭式导轨。
A.
正确
B.
错误
【单选题】下列句子中哪个句子是圆周句?
A.
The diver paused at the end of the board, gazing down at the smooth, greenish-bluewater meters below, his arms stretched out in front, his legs trembling slightly with anticipation and tension, drops of water falling from his fingertips into the swirling wind filled with murmurs from the crowd below and behind his solitary figure.
B.
In opening minds, instilling values, and creating opportunities, education has no equal.
C.
I have a dream that my four children will someday live in a nation where they will not be judged by the color of their skin but by the content oftheir character.
【简答题】数控机床导轨按运动轨迹可分为 导轨和 导轨。按工作性质可分为 导轨、 导轨和 导轨。
【单选题】哪个句子是圆周句?
A.
It is a pleasure to read good books.
B.
She missed the step and sprained her ankle.
C.
There were the translators in their booths, and the girl secretaries at the doors, and the reporters grumbling and scribbling in their seats.
【单选题】执行体液免疫功能的白细胞主要是( )
A.
T淋巴细胞
B.
B淋巴细胞
C.
巨噬细胞
D.
单核细胞
E.
嗜碱粒细胞
【单选题】导轨按运动轨迹可分为( )
A.
直线运动导轨与圆运动导轨
B.
开式导轨与闭式导轨
C.
主运动导轨与进给运动导轨
D.
滑动导轨与滚动导轨
【简答题】数控机床导轨按运动轨迹可分为()运动导轨和()运动导轨
【单选题】数控机床导轨按运动轨迹可分为直线运动导轨和( )。
A.
主运动导轨
B.
调整导轨
C.
圆运动导轨
D.
静压导轨
【单选题】单个细菌在固体培养基上的生长现象称为
A.
菌苔
B.
菌膜
C.
菌落
D.
菌丝
E.
菌团
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