风电机组低电压穿越

根据上下文填空。

      From London to New York, from Hong Kong to Moscow, subways (地铁) are an i______ (1)

way of transportation. T______ (2) in modern cities is often quite h______ (3), and it can sometimes

t______ (4) hours to cross a busy city in a car or bus. Subways help s______ (5) that problem, since

they don't have to stop at traffic lights, and h______ (6) of people can take a subway train together.

In larger subway systems, such as Mexico City's, there are lines that go far away from the city c______ (7). In this way, people living in the suburbs (郊区) can take a train to work. This r______ (8) the

traffic e______ (9) and leaving a city. It also helps stop air pollution, a big problem in many cities.

Finally, subways are usually c______ (10). Basically, in a city with a subway, everybody wins!

细菌的外形分为（）、（）、（）、（）四个基本形态。常见的球菌有（）、（）、（）常见的杆菌有（）、（）、（）等。

Euthanasia has been a topic of controversy in Europe since at least 1936. On an average of six times a day, a doctor in Holland practices "active" euthanasia: (1) administering a lethal drug to a (2) ill patient who has asked to be relieved (3) suffering. Twenty times a day, life prolonging treatment is withheld or withdrawn (4) there is no hope that it can (5) an ultimate cure. "Active" euthanasia remains a crime on the Dutch statute books, punishable (6) 12 years in prison. But a series of court cases over the past 15 years has made it clear that a competent physician who (7) it out will not be prosecuted.

Euthanasia, often called "mercy killing", is a crime everywhere in Western Europe. (8) more and more doctors and nurses in Britain, Germany, Holland and elsewhere readily (9) to practicing it, most often in the "passive" form of withholding or withdrawing (10) The long simmering euthanasia issue has lately (11) into a sometimes fierce public debate, (12) both sides claiming the mantle of ultimate righteousness. Those (13) to the practice see themselves (14) sacred principles of respect for life, (15) those in favor raise the banner of humane treatment. After years (16) the defensive, the advocates now seem to be (17) ground. Recent polls in Britain show that 72 percent of British (18) favor euthanasia in some circumstances. An astonishing 76 percent of (19) to a poll taken late last year in France said they would like the law changed to (20) mercy killings. Obviously, pressure groups favoring euthanasia and "assisted suicide" have grown steadily in Europe over the years.

3（）

A. against

B. off

C. of

D. out of

The nurse is caring for a client in acute renal failure. The nurse should expect hypertonic glucose, insulin infusions, and sodium bicarbonate to be used to treat

A. hypernatremia.
B. hypokalemia.
C. hyperkalemia.
D. hypercalcemia.

在DSC电文格式中，结束符菜单中没有（）。

A、EOS

B、ACK RQ

C、ACK BQ

D、OK！