属于钎焊特点的是（）。 A．易保证焊件的尺寸精度 B．设备比较

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问题多项选择题

属于钎焊特点的是（）。

A．易保证焊件的尺寸精度

B．设备比较复杂、费用较高，工艺参数调节匹配也比较复杂

C．在室外作业时，需设挡风装置

D．适用于各种金属材料、异种金属和金属与非金属的连接

答案

参考答案：A, D

完形填空

小题1:She’d like ( take) part in the sports meeting.

小题2:We ________________ ( not watch ) TV last night.

小题3:They had great fun (play) basketball yesterday afternoon.

小题4:Town Cinema has the _______________________ seats.（comfortable）

小题5:He _____________(forget) to turn off the light when he left the room.

小题6:I met some famous _________(act) in the street.

小题7: He decided __________________(work) harder in school this year.

小题8:I’m planning _________________(babysit) my little sister at home.

小题9:The good news made me ______________(feel)very happy

小题10:Dogs are too difficult _____( take) care of.

判断题

矿石磨碎后，有用矿物的绝大部分呈单体矿物颗粒从脉石中解离出来称为单体解离度。