问题 单项选择题

关于氯乙酸AS-D萘酚酯酶染色,下列概念不正确的是( )

A.其活性随粒细胞的成熟而增强
B.淋巴细胞、浆细胞和幼红细胞均呈阴性
C.单核细胞为阴性,个别呈弱阳性
D.急性粒细胞白血病原始细胞多呈阳性
E.原粒细胞为阴性反应或阳性反应,自早幼细胞至成熟中性粒细胞均为阳性反应

答案

参考答案:A

解析: 氯乙酸AS-D萘酚酯酶染色,原粒细胞为阴性或阳性反应,自早幼粒细胞至成熟中性粒细胞均为阳性反应,酶活性并不随细胞的成熟而增强。

完形填空

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

Many people find it hard to make friends.  小题1: All it takes is for you to get out of your shell and remember that if you love yourself, others will too. Especially being a teen, making friends can be hard or easy depending on several factors.

Relax. It’s all about confidence---if you are nervous or try too hard to look cool you’ll just act strange. So you won’t make many friends. You will stand out as overdoing(做得过分) something.

You have to act as you have had plenty of friends in the past, so even the “cool” ones will want to speak to you. 小题2: Be relaxed.People will like you for passing a peaceful energy.

Make the first move. Don’t be shy because it won’t help you in anything. Look around for people that seem interesting, and go up to talk to them. A good subject to talk about to anyone is music because almost everybody likes music. 小题3:Try not to get deep when you are first meeting somebody.

小题4: Everyone likes to be heard. So give attention to what others say, look straight in their eyes and show you’re paying attention. If this person feels that you’re listening to him, your new friend will enjoy your company more.

Develop friendships. You may talk to someone now but soon they’ll forget you if you stop.小题5: Say their name as often as you can. When you greet them, say things like, “Hey Alex!”,“What’s going on, Sarah?’’ If you do that every day, they’ll be happy that you care about them and remember them, so they won’t forget you and you will be good friends.

A.It is really not.

B.Be a good listener.

C.Other topics could be movies or sports.

D.Making one or two best friends is usually enough.E. Invite your new friends to go out together with you.

F. Think of good reasons why someone would like to meet you.

G. You’d better take a time to say hi to them every day and ask how they are doing.

选择题