岩体由各向异性向各向同性转化的节理组数为（）。A、2组及以上 B、3组 C、3组及以上D

根据短文内容判断正误。正确的在括号中写“T”，错误的写“F”。

     Robots seem very new to most people. But they have a long history. The first one was made by a Greek

inventor. You may see robots in some films. The robots in these films are stronger, faster and cleverer than

people. In real life, most robots are used in factories. They are used to do many dangerous, difficult or boring

jobs. Some people can't look after themselves and robots are used to help them. For example, some people

can't see, many of these people use a dog to help themselves move around. This dog is called a guide dog.

Scientists are making a robot to help them. In the future, robot dogs might take the place of these guide dogs.

     Robots are also used in American hospitals. At one hospital, a robot takes meals from the kitchen to the

sick people's rooms. It never loses its way because it has a map of the hospital in its computer system.

     In the future, robots will work in space. But robots will never take the place of human help. They can,

however, help us in a lot of different ways.

( )1. Robots have a long history.

(     )2. The first robot was invented by a Greek.

(     )3. Robots can only be seen in films.

(     )4. Robots can help some people look after themselves.

(     )5. Today's robots have quite a few different uses.

某研究小组设想以如图所示装置用电化学原理生产硫酸。 关于该装置的叙述正确的是(      )

A．该装置为电解池，通入O₂的电极是阳极

B．该装置中，通入SO₂的电极的电极反应式为：SO₂-2e^-+O^2-+H₂O=2H⁺+SO₄^2-

C．该装置中，H⁺通过质子膜向左侧移动

D．在标准状况下，若通人SO₂速率为2.24 L·min^-1，则通入O₂速率应为1.12 L·min^-1

学校教育对个体发展的功能包括( )。

A．引导和培养、塑造个体发展

B．加速个体发展

C．具有延时价值

D．开发个体特殊才能

E．个体发展的主观能动性

患者在饮食中尝到一种奇怪特殊的味道，实际不存在。此症状属于（）

A.幻觉

B.错想

C.幻想

D.幻味

E.真性幻觉

细牙螺纹的优缺点：（）；（），自锁性较好，强度高；因牙细不耐磨，容易滑扣。