单词拼写（共10小题；每小题1分，满分10分）

根据题中所给的中文提示或首字母写出符合句意的单词的正确形式。

小题1:.A large q__________ of air-conditioners has been sold since the temperature is high.

小题2:.It rained yesterday and as a c__________ the match was cancelled.

小题3:.The prices of the dolls r__________ from $ 5 to $ 100.

小题4:.We were really a__________ about you. You shouldn’t have left home without a word.

小题5:.I could hardly express my a__________ of your help.

小题6:The police __________(射击) at him, but he escaped.

小题7:What he said did not __________(惹恼) me , for I knew he did not mean it.

小题8:.If Paul __________(辞职), who will get the job ?

小题9:.He owes his success to his teacher’s __________(鼓励).

小题10:.It is our duty to help the __________(残疾).

设f（x，y，z）=xy²z³，且z=z（x，y）由方程x²+y²+z²-3xyz=0确定，求．