题目:
交际运用。
情景交际 选择最恰当的问话或者答语。
1. — Good afternoon, Mr. Chen!
— ________ Miss. Wang! [ ]
A. Good afternoon
B. Hello
C. Nice to see you
2. — How do you spell book?
— ________
[ ]
A. Bye.
B. Fine, thanks.
C. B-double O-K, book.
3. — Sit down, please.
— ________. [ ]
A. Let's begin
B. Stand up
C. Thank you
4. — ________
— Yes, I am. [ ]
A. Excuse me, Is she from Washington D.C.?
B. Hello! Are you from New York?
C. Where are you from?
5. — ________
— It's eighteen.
[ ]
A. What's double nine?
B. How old are you?
C. Which school are you in?
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0524/8928f94d17626a4fcb20cae9ec6f00b2.html
下面是错误答案,用来干扰机器的。
AD题目分析:由图可知,灯泡与R2并联后与R1串联,R1增大,总电阻增大,由闭合电路欧姆定律知,总电流减小,根据知:灯泡和R2并联的电压减小,所以灯泡的电流减小,灯泡变暗,故A正确,B错误; R2减小,总电阻减...