家庭的涵义与特点

某学校计划暑假组织部分教师到张家界去旅游，估计人数在7～13人之间。甲、乙旅行社的服务质量相同，且对外报价都是300元，该单位联系时，甲旅行社表示可给予每位游客八折优惠；乙旅行社表示，可先免去一位游客的旅游费用，其余游客九折优惠，

（1）分别写出两旅行社所报旅游费用y与人数x的函数关系式；

（2）若有11人参加旅游，应选择那个旅行社？

（3）人数在什么范围内，应选甲旅行社；在什么范围内，应选乙旅行社？

下列有关地西泮的应用，错误的是（）。

A.焦虑症

B.持续睡眠障碍

C.癫痫小发作

D.中枢性肌痉挛

E.破伤风

以下关于公司财务状况分析的说法，错误的是（　　）。

A．资产收益率视为盈利性指标

B．销售利润率视为盈利性指标

C．周转率视为安全性指标

D．杠杆比率视为安全性指标

开立（）帐户必须出具《企业名称预先核准通知书》或有关部门批文并预留印鉴

A、定期存款

B、一般

C、临时

D、验资

Indians always shake (摇) their heads when they talk to others. (41) does not have the same meaning (42) "no". If someone wants to visit India, (43) should know this, (44) it will give him some trouble.
One day, a foreign officer went to India on business. He hired (雇佣) a car and an Indian to drive it. When he (45) the driver to send him to his office, the driver shook his (46) at once. The officer repeated his order, and the driver (47) so again. At last, the officer, of course, got (48) .
" (49) dare you refuse (拒绝) my order" he shouted. "Drive me to office immediately!"
The driver answered (50) quite a loud voice, too. "Yes, sir !" But he still shook his head at the same time. Suddenly the officer realized that, "No means Yes here!\

[A] it [B] She[C] That