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【单选题】
关于水喷射混合室的说法,正确的是______。
A.
混合室进口呈圆锥形的效率低
B.
混合室圆柱形的效率高
C.
混合室长,摩擦损失大
D.
混合室长,扩压室损失大
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举一反三
【单选题】PART C Directions: You will hear three dialogues or monologues. Before listening to each one, you will have 5 seconds to read each of the questions which accompany it. While listening, answer each que...
A.
consumers spend their money at will
B.
consumers spend their money in accordance with producers' desire
C.
consumers' actions in the marketplace have nothing to do with the businessmen
D.
consumer's actions affect production greatly
【单选题】PART C Directions: You will hear three dialogues or monologues. Before listening to each one, you will have 5 seconds to read each of the questions which accompany it. While listening, answer each que...
A.
Several explorers.
B.
Representatives of Congress.
C.
President Grant.
D.
A group of animal lovers.
【单选题】中药品种申请一级保护的条件是
A.
用于预防和治疗特殊疾病的
B.
用于预防和治疗一般疾病的
C.
对特定疾病有显著疗效的
D.
对一般疾病有显著疗效的
【单选题】PART C Directions: You will hear three dialogues or monologues. Before listening to each one, you will have 5 seconds to read each of the questions which accompany it. While listening, answer each que...
A.
In the early 1810s.
B.
In the early 1820s.
C.
In the early 1830s.
D.
In the early 1840s.
【单选题】决定一个人能否实现旅游的家庭收入水平通常是指( )
A.
消费水平
B.
经济状况
C.
可支配收入
D.
可随意支配收入
【单选题】PART C Directions: You will hear three dialogues or monologues. Before listening to each one, you will have 5 seconds to read each of the questions which accompany it. While listening, answer each que...
A.
The benefits of nuclear weapons.
B.
The environmental pollution caused by nuclear-powered stations.
C.
The disadvantages of used fuel.
D.
The advantages of nuclear-powered stations.
【单选题】The audience ______ before TV sets are listening to Yi Zhongtian’s stories with their eyes _____ upon him.
A.
seating;fixing
B.
seated;fixing
C.
seated;fixed
D.
seating;fixed
【单选题】中药品种申请二级保护的条件是
A.
用于预防和治疗特殊疾病的
B.
用于预防和治疗一般疾病的
C.
对特定疾病有显著疗效的
D.
对一般疾病有显著疗效的
【单选题】第二篇Listening Comprehension:A.It was produced before AD 400.B.It was produced before
A.
11:第二篇Listening Comprehension: A.It was produced before AD 400.
B.
It was produced before AD 200.
C.
It was produced before AD 100.
D.
It was produced before AD 50.
【单选题】PART C Directions: You will hear three dialogues or monologues. Before listening to each one, you will have 5 seconds to read each of the questions which accompany it. While listening, answer each que...
A.
The Southeast.
B.
The Northwest.
C.
The Southwest.
D.
The central part of the state.
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