观察右图，已知北半球同纬度A、B两点，若A点为陆地，B点为海洋，判断图中所表示的

下列句子没有语病的一项是（     ）

A．如“阿Q”一类的“字母词”已遍布汉字文化圈内，不但进入教科书，而且活跃在各类媒体上。

B．政府执法部门的各种罚没款必须依法上缴，不能截留自用，其经费来源只能来自国家财政拨款。

C．艺术欣赏中的审美体验往往只可意会不可言传，一经点破，那含蓄蕴藉的美感常常会遭到破坏的危险。

D．从根本上说，科技的发展，经济的振兴，乃至整个社会的进步，都取决于劳动者素质的提高和大量合格人才的培养。

替喷进口管线安装（），试水压到预计工作压力的1.5倍，稳压5min不漏。

A、单流阀

B、截止阀

C、双向阀

D、水阀

阅读理解。

     It's easy to see how the sawfish got its name. These frightful creatures can grow to be more

than 6 meters long. Their bodies are flat and winged, like underwater airplanes. And their noses

are shaped like chainsaws.

     Sawfish are food hunters of the sea. When a sawfish is hungry, it waves its sharptoothed snout

(口鼻部) through a group of fish. Then, it lifts its nose and uses its mouth to draw the injured victims.

     Hardy (适应力强的) population of sawfish thrived in warm waters along coastlines around the

world for thousands of years. Over the past 200 years, however, human actions have severely

endangered sawfish. Threats include fishing nets that trap the huge animals, often by mistake.

     Some people collect sawfish's snouts as prizes: One snout recently sold for nearly $1,600 online.

In some Asian cultures, the toothy snouts are used in ceremonies to drive evil and disease away. And

sawfish are also delicious. A growing demand in Asia for the fish's fins for a pricey soup has contributed

to the fish's disappearance. Compared with other fish, sawfish give birth late in life and at slow rates,

which makes it hard for them to recover from overfishing.

     New efforts now aim to restore sawfish population. Beginning next month, an international agreement

will provide protection for all seven of the world's sawfish species. Scientists are hoping that it's not too

late to save the sawfish.

     "Until 1998, this fish had never been formally studied in the United States," says Tonya Wiley of the

Mote Marine Laboratory in Sarasota, FIA."We didn't know such basic things as where they live, what

habitat they use, how often they breed, how many young they have- even what age sawfish are when

they begin breeding."

     Through historical studies and field research, scientists have become aware of how much the fish's

numbers have decreased. Today, there may be 90 percent fewer sawfish than there used to be. Wiley

estimates that only 3,000 to 6,000 sawfish remain in US waters.

                                                                Sawfish

电冰箱制冷剂使用这一活动中环境因素的正确描述应是（）

A.电冰箱使用

B.CFC

C.制冷剂的泄露

D.臭氧层的破坏

下列各项中，符合会计要素收入定义的是( )。

A．出售无形资产净收益
B．出售材料收入
C．转让固定资产净收益
D．向购货方收取的增值税销项税额