处理问题指甲时，（）不能选用透明色，水晶指甲做完后，指甲表面如果仍能透射出下面痕迹时

Your home is a safe place, right? Think again.

Many serious accidents happen in people's homes. Could you please prevent these accidents? Yes. Many accidents happen because people are careless. So be careful! Here are some tips about safety.

·Don't stand on chairs. Many people may fall off chairs and hurt themselves.

·Keep the floor dry, and you won't slip (滑) or fall.

·Be away from matches. Even a cigarette (香烟) can easily start a fire. Don't use water to put out fires. Use salt instead.

·Be careful with knives! Many people cut themselves in the kitchen. Never touch the broken bottles, doors  or windows. Glass can also cause the most serious cuts.

·Don't keep poisons (毒药) in the kitchen.

·Never use electrical appliances (电器设备) in the shower. Dry the floor before you use them, or  electricity can hurt you!

·Keep children away from hot water and hot drinks. They can be dangerous. But adults often forget it.

·Look through the peephole (门镜) when you hear the knock on the door. Don't let strangers in.

In a word, we should learn to protect ourselves and stay away from danger.

根据短文内容判断正(T)误(F).

小题1:You must be careful when there is water on the floor.

小题2:Salt can’t be used for putting out fires.

小题3:It’ s not safe for people to touch switches(电器)

小题4:Water and drinks can be dangerous for both children and adults.

小题5:Open the door at once when you hear someone knocking at the door.

急性白血病诱导缓解治疗的目标是（）。

A.完全消灭白血病细胞

B.使体内白血病细胞减少到10¹⁰以下

C.使体内白血病细胞减少到10⁹以下，骨髓造血功能恢复，白血病的症状体征消失

D.改善临床症状

E.使体内白血病细胞减少到10⁵以下

B超监护不能显示的是（）。

A.胎儿皮肤成熟度

B.胎儿数目

C.有无胎心搏动

D.胎盘成熟度

E.胎盘位置

在间歇训练中，开始下一次练习的确定依据为（）

A、机体完全恢复

B、间歇3分钟以上

C、心率降至120次

D、运动员自我感觉

非带电回路内通过的电流叫杂散电流。