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【单选题】
Read the magazine article about business English. Choose the correct word to fill each gap from A, B or C . For each question(1-12), mark one letter(A, B or C)on your Answer Sheet. Business English English is becoming an international business language. This is【C1】______more and more companies are providing English language training for【C2】______employees. It can be very expensive, so companies should find out【C3】______really needs English and for what purpose. In a tourist hotel,【C4】______example, the manager【C5】______not need to use English much, except to【C6】______with complaints or to talk to important business contacts. The waiters,【C7】______the other hand, use English all the time. A manager and a waiter need different kinds of English, so the training【C8】______gets will also be very different. Then, some employees only【C9】______ a reading knowledge of English, so it would be a waste money to train【C10】______employees in conversational skills. But companies should also【C11】______into account the wishes of the employee themselves. Many people want to learn English, not just for their present job,【C12】______ because they see it as a passport to a better job in the future. This is【C1】______more and more companies are providing English
A.
why
B.
that
C.
because
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【单选题】团的全国代表大会每 年举行一次,由中央委员会召集,在特殊情况下可以提前或延期举行。
A.
B.
C.
D.
【判断题】紊流光滑区的沿程水头损失系数仅与雷诺数有关,而与相对粗糙度无关。
A.
正确
B.
错误
【简答题】工业上合成氨在一定条件下进行如下反应:N 2 (g)+3H 2 (g) 2NH 3 (g) △H=-92.44 kJ/mol。其部分工艺流程如下图所示: (1)合成氨所需要的原料气中,氮气取自 ,氢气来源于 。 (2)对原料气进行净化处理的目的是 。 (3)设备A的名称是 ,设备B的名称是 。 (4)在20~50 Mpa时,工业合成氨选择在400—500℃的温度进行反应, 主要原因是 。 (5)据...
【判断题】On most occasions some potent depressions may move in from the north in the form of "Polar Lows", introducing heavy snow and often blizzard-like conditions to parts of the United Kingdom, particularly...
A.
正确
B.
错误
【简答题】第四章计算题 2. 某完全竞争企业的短期边际成本函数为SMC=0.6Q-10,总收益函数为TR=38Q,且已知产量Q=20时的总成本STC=260。 求该厂商利润最大化时产量和利润。
【简答题】工业上合成氨在一定条件下进行如下反应:N 2 (g)+3H 2 (g)?2NH 3 (g)△H=-92.44kJ/mol.其部分工艺流程如图1所示: (1)合成氨所需要的原料气中,氮气取自______,氢气来源于______. (2)对原料气进行净化处理的目的是______. (3)设备A的名称是______,设备B的名称是______. (4)在20~50Mpa时,工业合成氨选择在400-500...
【单选题】In northeast China, sometimes in winter the snow is so heavy that truck wheels may get stuck the snow.
A.
in
B.
on
C.
at
D.
with
【简答题】第四章计算题 3. 已知某完全竞争市场的需求函数为D=6300-400P,短期市场供给函数为SS=3000+150P;单个企业在LAC曲线最低点的价格为6,产量为50;单个企业的成本规模不变。 (1)求市场的短期均衡价格和均衡产量。 (2)判断(1)中的市场是否同时处于长期均衡,求行业内的企业数量。 (3)如果市场的需求函数变为D’=8000-400P,短期供给函数为SS'=4700+150P,求...
【单选题】The heavy snow in early spring may__________the growth of the wheat.
A.
hold on
B.
hold up
C.
hold out
D.
hold in
【单选题】关于女性生殖系统的叙述,下列哪项不正确
A.
内生殖器官全部位于盆腔腹膜内
B.
骨盆的大小、形态对分娩有直接影响
C.
骨盆底组织承托盆腔脏器
D.
阴部内动脉为髂内动脉前干终支
E.
阴道壁富有静脉丛,损伤后易形成血肿
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