基站掉话机制包括()和()

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问题:

基站掉话机制包括()和()

考点:烟草物流师五级考试烟草物流师五级考试题库
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创伤的全身反应有哪些?

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红军长征途中渡过下列河流的先后顺序是

①大渡河②湘江③赤水河④金沙江[ ]

A.①②③④

B.①③②④

C.②④③①

D.②③④①

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乳腺炎的超声表现中,以下正确的是

A.乳腺肿大

B.探头加压有压痛

C.炎性肿块初期呈低回声,边界不整,内部回声不均

D.脓肿形成后则出现不规则无回声区,可有分隔,后壁回声增强

E.肿块边缘较薄,回声强,血供较少

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在人体肝胆管内寄生的寄生虫是()

A.丝虫

B.旋毛虫

C.华支睾吸虫

D.钩虫

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World Water Shortage


A new study warns that about thirty percent of the world’s people may not have enough water by the year 2025.
A private American organization called (1) Action International did the new study. It says (2) than three-hundred-thirty-five-million people (3) enough water now. The people live in twenty-eight (4) . Most of the countries are in Africa or the (5) East.
P-A-I researcher Robert Engelman says (6) the year 2025, about three-thousand-million people (7) lack water. At least 18 more countries are (8) to have severe water problems. The demand (9) water keeps increasing. Yet the amount of water on Earth (10) the same.
Mr. Engelman says the population in countries that lack water is (11) faster than in other parts of the world. He says (12) growth in these countries will continue to (13) .
The report says lack of water in the future may (14) in several problems. It may increase health (15) . Lack of water often means drinking (16) not safe. Mr. Engelman says there are problems (17) over the world because of diseases, such as cholera, (18) are carried in water. Lack of water may also result (19) more international conflict. Countries may have to (20) for water in the future. Some countries now get sixty percent of their fresh water from other countries. This is true of Egypt, the Netherlands, Cambodia, Syria, Sudan, and Iraq. And the report says lack of water would affect the ability of developing to improve their economies. This is because new industries often need a large amount of water when they are beginning.

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