学校开展心理健康教育的途径有哪些？

阅读理解。

    Different countries and different people have different manners (礼貌). We must know

their customs (风俗习惯), or they will think we are ill-mannered (不礼貌).

    If you visit a Chinese family, you should knock at the door first. When the door is

opened, you can't move before the host (男主人) says "come in". After you enter the room,

you shouldn't sit down until the host asks you to take a seat.

    Before entering a house in Japan, you should take off your shoes. But in European (欧洲)

countries, you don't take off your shoes. In a Malay house, a visitor can't eat up (吃光)

the food on the table. But in England, you should eat up all the food. This may make the

host happy.

根据短文内容，判断正（T）、误（F）。

( )1. Different countries has different customs.

( )2. You can come in without (没有) knocking at the door in China.

( )3. You should take off your shoes when entering a Japanese family.

( )4. You can't sit down if a Chinese man doesn't let you have a seat.

( )5. If you eat up all the food in Malay, people think you are mannered.

联欢会上，小君唱了一首《深呼吸》，唱得虽很投入，但是明显跑了调。同学们都鼓掌表示欢迎。小明对小君说：“你唱得太棒了，简直比雨泉唱得都好。”小明是个很善于赞美他人的人。

你同意这个观点吗？为什么？

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抗结核药联合用药的目的是

A．延缓抗药性

B．减少各药用量

C．扩大抗菌谱

D．提高疗效

E．降低毒性

孕妇怀孕（）不宜使用罗勒。

退火的目的调整钢的硬度，改善其切削加工性能。