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阅读理解。 The Blacks are American tourists. They visits now in Beijing. This is their first visit to China. They are going to stay in China for three months. They want to visit some big cities and villages. They hope to learn some Chinese, too. Mr Black is a taxi driver. He likes to drive in Beijing. Mrs Black is a school teacher. She is visiting a city school today and a village school tomorrow. Their daughter is a middle school student. She is going to meet some Chinese students. They are taking a lot of pictures in China. When they return to America, they are going to show the pictures to their friends. They want the American people to know more about China. 1. The Blacks are from ______. A. China B. England C. Canada D. the USA 2. The Blacks are staying in ______ now. A. England B. Beijing C. Shanghai D. New York 3. Mr Black is ______. A. a teacher B. a doctor C. a taxi driver D. a worker 4. There are ______ people in Mr Black's family. A. two B. three C. four D. five 5. Why are they going to show the pictures to their friends when they go back to America? A. Because the pictures are very beautiful. B. Because they like China. C. Because they want the American people to know more about China. D. Because they want the American people to come to China.
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【单选题】关系S(S#,SNAME,SEX),C(C#,CNAME),SC(S#,C#)。其中S#为学生号,SNAME为学生姓名,SEX为性别,C#为课程号,CNAME为课程名。要查询选修“计算机”课的全体女学生姓名的SQL语句是SELECT SNAME FROM S,C,SC WHERE子句。这里 WHERE子句的内容是
A.
S.S#=SC.S#ANDSEX='女'AND CNAME='计算机'
B.
S.S#=SC.S# AND C.C#=.SC.C# AND CNAME='计算机'
C.
SEX='女'andCNAME='计算机'
D.
S.S#=SC.S# AND C.C#=SC.C# AND SEX='女'AND CNAME='计算机'
【简答题】理论上讲,任何自发的氧化还原反应都可以设计成原电池.请你利用下列反应“Cu+2Ag + =2Ag+Cu 2+ ”设制一个化学电池,并回答下列问题: ①该电池的正极材料是______,负极材料是______,电解质溶液是______. ②在外电路中,电流方向是从______极到______极. ③正极上出现的现象是______.负极上出现的现象是______.
【单选题】—Lucy, I hear the new TV tower is fantastic. Could you tell me ________? —Sure! Take No. 8 bus. It's not far. [     ]
A.
how far it is
B.
where is it
C.
how I can get there
D.
which bus should I take
【简答题】根据汉语提示完成句子。 1.They (表演) an English short play for us tomorrow. 2. Could you tell me the best way (筹款)? 3. The students will (决定) the way to travel. 4. Kate will go on the (野外旅行) with her friends tomor...
【简答题】This coat is very cheap. I ____ (take) it now. 7. I ́ll tell him about it when he ____ (come) back. 8. Could you tell me how .I ____(can get) to No 3 Middle school. 9. He ____ said that the new teache...
【单选题】不属于内脏器官的是
A.
尿道
B.
C.
气管
D.
E.
子宫
【简答题】自发的氧化还原反应可以设计成原电池。若利用反应“Cu+2Ag + =2Ag +Cu 2+ ” 设计一个原电池,回答下列问题: ①该电池的负极是__________,正极上反应的离子是________。 ②在外电路中,电子流动方向从_________极流向________极(填“正”或“负”)。内电路中,阳离子移向_______(填“正极”或“负极”)。
【简答题】I have heard that you are going to build a new school. Could you tell me the plan ___ detail?
【多选题】判断氧化还原反应的方向可以利用:
A.
Δ H Ө
B.
Δ G
C.
Δ E
D.
Δ S Ө
【单选题】关系S(S#,SNAME,SEX),C(C#,CNAME),SC(S#,C#)。其中S#为学生号,SNAME为学生姓名,SEX为性别,C#为课程号,CNAME为课程名。要查询选修“计算机”课的全体女学生姓名的SQL语句是SELECT SNAME FROMS,C,SCWHERE子句。这里WHERE子句的内容是( )。
A.
S,S#=SC.S#AND SEX=“女”ANDCNAME=“计算机”
B.
S,S#=S C.S#AND C.C#=S C.C#AND CNAME=“计算机”
C.
SEX=“女”AND CNAME=“计算机”
D.
S.S#=S C.S#AND C.C#=S C.C#AND SEX=“女”AND CNAME=“计算机”
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