二尖瓣狭窄首先引起（） A.左心房肥大扩张 B.心室肥大扩张 C.肺淤血水肿 D.肺

在控制通货膨胀的同时，保持适度的经济增长，应采取( )。

A．紧的财政政策和紧的货币政策

B．紧的财政政策和松的货币政策

C．松的财政政策和松的货币政策

D．松的财政政策和紧的货币政策

某学习小组同学用如图装置探究碳还原氧化铜的过程．

（1）刚开始预热，试管②中立即产生气泡，但石灰水不变浑浊，原因是______；

（2）继续加热，观察到的现象有：石灰水逐渐变浑浊、______．

（3）小欣从课外书上看到，碳还原氧化铜可能生成红色的氧化亚铜　（Cu₂O）固体，上述实验中产生的红色固体是否含有氧化亚铜？于是他们继续探究．

【查阅资料】氧化亚铜难溶于水，Cu₂O+H₂SO₄（稀）=Cu+CuSO₄+H₂O

【实验探究】

实　验　操　作	实　验　现　象	实　验　结　论
取少量的红色固体，置于烧杯中，向其中加入足量______，充分搅拌，静置．	______	猜想成立

若在上述实验前称取红色固体7.2g进行实验，完毕后经过滤、洗涤、干燥和称量，得固体Ag，讨论：当红色固体中还有铜，则A的取值范围是______．

疳肿胀的治法是（）

A.利水消肿

B.淡渗利湿

C.温阳利水

D.健脾化湿

E.疏风利水

There is no doubt that Apple is well aware of the increased competition in the market and could be in a hurry to put another product out there, said Ramon Llamas, senior research analyst at IDC Mobile Devices Technology and Trends. Given its history with product launches and business policy, though, Apple probably isn’t going to rush an iPhone release simply to put it on shelves, he said.

“If you’re Tim Cook (CEO of Apple), you’re thinking if you want to pay more attention to how to keep growing that bottom line and keep investors(投资人) happy, or continue with the same approach from Apple, which is do what we can do and manage products and releases in the best way they can work for us. Apple usually does things in their own time, and I’m having a hard time buying this May or June timeline.” Llamas told Mac News World.

While it’s probable that Apple is surely in a testing stage for its next smartphone, consumers likely have a standard wait for the finished product, said Colin Gibbs, analyst at GigaOm Pro.

“It typically takes a year or longer to create a state-of-the-art smartphone, so no one should be surprised Apple is in the testing stages with the next iPhone. And while it’s possible that Apple could launch the next iPhone this spring or summer, I’m not expecting to see it until a little later in the year,” he told Mac News World.

When it does launch, though, it could be in a variety of colors, said Gibbs. “Apple has already tested the waters with releasing colored products when it revamped (更新，翻新）its iPod line last fall, so it is understood that it would want the new change with its smartphone, as well”.

“I wouldn’t be surprised if the new iPhone becomes available in some new colors,’’ he said. “That could be done pretty cheaply, and it would give Apple a new marketing angle.”

小题1:According to Ramon Llamas, Apple always ______.

A．tries to please its investors

B．rushes to put new products to market

C．ignores the fierce market competition

D．does things as planned小题2:As for the next iPhone, Colin Gibbs didn’t mention ______.

A．the stage of its being tested

B．the rough time of its being released

C．the function to be improved

D．the wide variety of its color小题3:What’s Colin Gibbs’ attitude towards the next iPhone?

A．Disapproving.

B．Indifferent (漠不关心的).

C．Doubtful.

D．Objective.小题4:This passage is presented in the form of ______.

A．stories

B．comments

C．advertisements

D．debates

CCD扫描器采用（CCD）的电子自动扫描光电转换器（）

A.电荷耦合器件

B.激光为光源