小题1:The advance in technology has added many new _______(功能) to the cell phone.

小题2: The _____( 气候)  in Chongqing is always mild.

小题3:I have _______(解释) the cause many times to the audience to keep a positive image.

小题4: It is ____(不必要) to ask him to change his mind.

小题5: This material ______(传导) electricity.

小题6: We can draw the ______(结论) that the two chemicals do not react.

小题7:I have never______(后悔) my decision to come back to my motherland.

小题8:_____(环境的)protection should be put at the top of the list for each country.

小题9: Special puzzles have been designed to test the ________(智力)of the children.

小题10:She went abroad for further study with the __________(目的) of finding a good job.

灰分测定中使用的钳叫（）。

A.不锈钢钳

B.铁钳

C.坩埚钳

D.钢钳