急性化脓性骨髓炎应用抗菌药治疗时，下列错误的是（） A.早期用药 B.联合用药 C.

Look closely at your hands. Are they clean? It doesn't matter how many times you wash your hands, tiny microbes (微生物) still stay on them. But don't worry. Most microbes don't harm you.

Now scientists say the microbes on our hands could be used in a surprising way; fighting crime, According to a recent survey microbes as well as fingerprints(指纹) could be used to indentify the criminal.

Everyone has his own set of microbes on the hands. That is to say, if you and your best friend were able to see and compare all the microbes on your hands, your hands probably would look different. Some microbes only show up on your hands while others live only on your friend's hands.

When you work on a computer you leave the microbes from your hands on the keyboard. The scientists can easily tell the owner of the keyboard by looking at the microbes on it. Even if you don't leave your fingerprints behind, your microbes may give you away.

Noah Fierer, a scientist, says. "You can only clean a fingerprint, but you can't sterilize (使无菌) a surface just by wiping(擦) it off," He says that scientists have a lot more work to do before the microbe is used as a useful tool.

小题1:According to the passage,_______ could be used to identify the criminal.

A．fingerprints

B．scientists' hands

C．microbes

D．fingerprints and microbes on people's hands小题2:Paragraph 3 tells us that________.

A．our hands look similar

B．the microbes will make the keyboard dirty.

C．we should compare hands often

D．we have our own sets of microbes.小题3:When you work on computer, the microbes________.

A．just stay on our hands

B．also stay on the keyboard

C．will do harm to you

D．will disappear小题4:From Noah Fierer we know that________.

A．fingerprints are no longer useful in fighting crime

B．microbes can be found on everyone's hands.

C．unlike microbe fingerprints can be cleaned if people wipe them

D．the microbe is used as a useful tool小题5:What’s the best title of the passage?

A．Microbes May Tell Who You Are

B．Scientists Say Everyone Has Microbes

C．Noah Fiercer Does Research Into Microbes

D．Fingerprints Help Catch Criminals

设N_A代表阿伏加德罗常数．下列说法正确的是（　　）

A．标准状况下，2.24 L NH₃气体溶于l L水中得到0.1 mol/L的氨水

B．质子总数为10 N_A的重水（D₂O）的质量为18 g

C．0.4 mol乙炔和乙醛混合气体，在氧气中充分燃烧，消耗氧气的分子数为N_A

D．500 mL 0.2 mol/L的K₂S溶液中含有的离子总数为0.3 N_A

以下那些是先天性肌强直的特点（）

A.肌肥大

B.肌萎缩

C.脱发

D.白内障

E.内分泌异常

关于非典型增生的描述，错误的是

A．重度非典型增生需积极治疗

B．增生的细胞大小形态不一、核深染、核分裂增多

C．轻度和中度非典型增生是不可逆转的

D．属癌前病变

E．可发展为原位癌

在运输工具内提供热源，使车内保持高于外界气温的适当温度的运输方法为（）。

A、除湿

B、保温

C、防寒

D、加温