问题 单项选择题

下列病例各患儿的心脏血液动力学的主要改变是:5岁患儿,女,从小多次患肺炎,近1年活动稍受限,查体:发绀(-)、心前区略膨出,P2无明显亢进,胸骨左缘第3肋间有Ⅲ级柔和的收缩期杂音,未触及细震颤,两肺无啰音,腹软,肝不大。心电图检查:V导联QRD波呈M型,时限0.10秒,Rv2.0mV()

A.右心室后负荷增加

B.左心室后负荷增加

C.右心室前负荷增加

D.左心室前、后负荷均增加

E.左心室前负荷增加F.右心室前、后负荷均增加G.以右室后负荷增加为主

答案

参考答案:C

阅读理解

In just minutes a day, plug in and charge your iPhone quickly!

Just plug RichardSolo 1800 into your iPhone once or twice a day, for fifteen minutes, and keep your iPhone charged up. At your desk, or at dinner, plug RichardSolo into iPhone to instantly transfer charge. No more battery worries. RichardSolo will charge iPhone to full 1.5 times, and it is good for 3-5 years of recharges.

Use the iPhone while charging it. Even charge the RichardSolo 1800 and iPhone together at the same time. Take only one charger when traveling and wake up in the morning with the RichardSolo and the iPhone charged.

RichardSolo 1800 is largest in its class and holds its charge for months. Works with almost all iPhone cases.

Your satisfaction is guaranteed, with our 30-day return privilege. If you’re not satisfied for any reason, we’ll email you a pre-paid return label.

Actual customer comments:

To have your company exhibit such good service is unbelievably refreshing. — P.S.

This is what I call great customer support. I wish more companies would figure this out these days. Thank you so much. — D.C.

You have provided me one of the best services I have ever seen on any online/ telephone shopping. — T.K.

You must have the fastest processing and shipping in the industry!! — M.C.

This is the best customer service experience I have had in a long time. — L.L.

I’ve read online about your amazing customer service, and I must say I’m now a true believer. — B.L.

小题1: How long does it take the battery to charge up an iPhone?

A.15 minutes.

B.30 minutes.

C.1.5 hours.

D.3 hours.小题2:What is special about the battery?

A.It is built in an iPhone.

B.It is the smallest of its kind.

C.It can also be used as a charger.

D.It keeps power for about 30 days.小题3: If you are not satisfied with the product, you ______.

A.may get your pre-paid money back with any reason

B.can demand an apology and the money back within 30 days

C.have the privilege of one-month return without any reason

D.are probably unable to have the return privilege with a return label小题4:Who mentions the transporting of the battery?

A. P.S.     B. B.L.     C. M.C.     D. T.K.

小题5:The customer comments on the battery are mainly about its _______.

A.quality

B.service

C.function

D.shopping

单项选择题