管道安装时不得用强力对口连接,不得使连接件承受()。 A.拉力 B.压力 C.应力

题型:单项选择题

问题:

管道安装时不得用强力对口连接,不得使连接件承受()。

A.拉力

B.压力

C.应力

D.拉力和应力

考点:天然气安全知识天然气安全知识题库
题型:单项选择题

牙体缺损的修复体,设计时不属非考虑不可的因素是 ()

A.非缺损牙的对牙合牙健康情况

B.缺损的部位与缺损的程度

C.缺损牙有无病理性松动

D.缺损牙与对牙合牙有无过紧的咬合接触

E.缺损牙的牙周和牙髓情况

题型:单项选择题

与天然同名牙相比,人工后牙应()

A.略大于天然牙

B.略小于天然牙

C.与天然牙大小相同

D.明显大于天然牙

E.不一定

题型:单项选择题

Look at(看) Li Ming. He is from Guangzhou. He is thirteen years old. Now he is in Guangzhou Yuying Junior High School. He is in Class Five, Grade Eight. His phone number is (020)7868-9688.

Li Ming and Sally are friends. They are in the same class, but not the same age. She is twelve. She’s from Canada. Now Sally and her mom are in the same school. Her mom is a good teacher. Li Ming and Sally are good friends.

小题1:Where is Sally from?

_____________________________________________

小题2: Is Sally thirteen years old?

_____________________________________________

小题3:How old is Li Ming?

_____________________________________________

小题4:Are Li Ming and Sally in the same grade?

_____________________________________________

小题5:Where are Li Ming and Sally now?

_____________________________________________

题型:单项选择题

彩色电视机的消噪电路失去作用,不会影响到

A.行振荡器

B.中频电路

C.场振荡器

D.电源电路

题型:单项选择题

假设以保证金方式购买100股IBM股票股票价格为70.00初始保证金为50维持保证金为30。在以下何种情况下会接到追缴保证金通知假设股票无分红且忽略保证金利息。()

A.21.00

B.50.00

C.49.00

D.80.00

E.以上无正确答案

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