（）用于连接柴油机曲轴和同步主发电机转子轴。A、凸轮轴B、增压器C、中冷器D、联轴节

方中不含有生姜、大枣的方剂是（）

A.吴茱萸汤

B.桂枝汤

C.黄芪桂枝五物汤

D.炙甘草汤

E.大建中汤

阅读下面短文，掌握其大意，从每题所给的A、B、C、D四个选项中，选出最佳选项，并在答题卡上讲该项涂黑。

A Race Against Death

It was a cold January in 1925 in North Alaska. The town was cut off from the rest of the world due to heavy snow.

On the 20th of that month, Dr.Welch   36   a Sick boy, Billy, and knew he had diphtheria, a deadly infectious(传染的)disease mainly affecting children. The children of Nome would be  37  if it struck the town. Dr.Welch needed medicine as soon as possible to stop other kids from getting sick.   38  , the closest supply was over 1,000 miles away, in Anchorage.

How could the medicine get to Nome? The town`s  39  was already full of ice, so it couldn`t come by ship. Cars and horses couldn`t travel on the   40  roads. Jet airplanes and big trucks didn`t exist yet.

41  January 26, Billy and three other children had died. Twemty more were   42  . Nome`s town officials came up with a(n)  43  . They would have the medicine sent by   44  from Anchorage to Nenana. From there, dogeled(狗拉雪橇)drivers—known as “mushers”—would   45  it to Nome in a relay(接力).

The race began on January 27. The first musher, Shannon, picked up the medicine from the train at Nenana and rode all night.  46  he handed the medicine to the next musher, Shannon`s face was black from the extreme cold.

On January 31， a musher named Seppala had to   47  a frozen body of water called Norton Sound .It was the most  48  part of the journey. Norton Sound was covered with ice,which could sometimes break up without warning.If that happened,Seppala might fall into the icy water below.He would  49  ,and so would the sick children of  Nome.But  Seppala made it across.

A huge snowstorm hit on February 1.Amusher  named Kaasen had to brave this storm.At one point,huge piles of sonw blocked his 50  .He had to leave the trail (雪橇痕迹)to get around them.Conditions were so bad that it was impossible for him to  51  the trail again. The only hope was Balto,Kaasen’s lead dog, Balto put his nose to the ground, 5 2  to find the smell of other dogs that had traveled on the trail.If  Balto failed,it would mean disaster for Nome.The minutes passed by.Suddenly, Balto began to  53  .He had foung the trail

At 5:30 am on February 2, Kaasen and his dog  54  in Nome. Within minutes,Dr.Welch had the medicine.He quickly gave it to the sick children.All of them recoverd.

Nome had been  55  .

48（）

A.shameful

B.boring

C.dangerous

D.foolish

公民无论以何种方式参与政治生活，必须坚持以下原则        (　　)

①法律面前一律平等　          ②权利与义务相统一

③个人利益与国家利益相结合　  ④民主决策与依法行政相结合

A．①②③

B．②③④

C．①②④

D．①③④

如图所示，两个横截面面积不相同、两端开口的圆柱形管组成的一个气缸被固定在竖直方向，用AB和CD两个被轻绳连接的活塞密封一定量的气体，不记气缸和活塞间的摩擦力，气缸导热良好．已知活塞AB的质量为3m，面积为2S；活塞CD的质量为m，面积为S；稳定时，气缸内气体体积为V₁，取大气压强为P₀，试求：

①稳定后，气缸内气体的压强；

②在AB上放置一质量也为m的物体，稳定后，活塞AB未下降到气缸转角EF处，求气缸内气体的体积．

各基层单位，凡是有正式党员5人以上，都应当成立党的基层组织。