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【单选题】
在车床或钻床上使用镗模夹具,则可进行壳体零件或箱体零件的镗孔加工。这是发挥了机床夹具()的功能(或作用)。A.
机床夹具的功能
B.
提高生产率
C.
减轻工人的劳动强度，保证生产安全
D.
扩大机床的工艺范围
拍照语音搜题，微信中搜索"皮皮学"使用
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】—Is Mrs. Zhao a Japanese woman? —_____. [ ]
A.
Yes, Mrs. Zhao is
B.
Yes, he is
C.
No, she isn’t
【单选题】Mrs. White isn't feeling well these days. She has made _____ with the doctor at three this afternoon. [ ]
A.
a movement
B.
an interview
C.
an appointment
D.
a decision
【单选题】James with the Greens _________ the White Tower Park if it_________ tomorrow.
A.
are going to, isn’t rainy
B.
are going to, doesn’t rain
C.
is going to, won’t rain
D.
is going to, isn’t rainy
【简答题】I’m afraid Mr. White isn’t available at the moment. Can I ______?
【单选题】What does that mean?
A.
He isn't sure of the membership fee.
B.
He can't decide which group to join.
C.
He can't remember the phone number.
D.
He doesn't like to visit the advisor.
【简答题】教师从学生的实际情况、个别差异出发,有的放矢地进行差别教学,体现了教学的( )A. 启发性原则 B. 循序渐进原则 C. 直观性原则 D. 因材施教原则
相关题目：
【单选题】—Is Mrs. Zhao a Japanese woman? —_____. [ ]
A.
Yes, Mrs. Zhao is
B.
Yes, he is
C.
No, she isn’t