单选题The probability of guessing the correct answer to a certain test question is x/12. If the probability of NOT guessing the correct answer to this question is 2/3, what is the value of x?A 2B 3C 4D 6E 12

题目
单选题
The probability of guessing the correct answer to a certain test question is x/12. If the probability of NOT guessing the correct answer to this question is 2/3, what is the value of x?
A

2

B

3

C

4

D

6

E

12

如果没有搜索结果或未解决您的问题,请直接 联系老师 获取答案。
相似问题和答案

第1题:

Whose ( )is it to answer the question

A、possible

B、lesson

C、turn

D、time


参考答案:C

第2题:

请马上回答我的问题。

Please answer my question_________ _________.


正确答案:
.31. at once

第3题:

Part A

Directions: You will hear 10 short dialogues. For each dialogue, there is one question and four possible answers. Choose the correct answer ― A, B, C or D, and mark it in your test booklet. You will have 15 seconds to answer the question and you will hear each dialogue ONLY ONCE.

听力原文:M: I had a very strange dream last night. I dreamt I won a competition.

W: Oh, really? What did you win? Money? A new car?

M: I won a holiday on a desert island. I hope it will come true.

What did the man win in his dream?

A.A holiday.

B.A new ear.

C.Some money.

D.A desert.


正确答案:A
解析:男士说他梦到的是赢得一场比赛,比赛的奖励是到一个荒岛上去度假。

第4题:

Which of the following answer is correct to express the value 8 in octal number?()    

  • A、 010
  • B、 0x10
  • C、 08
  • D、 0x8

正确答案:A

第5题:

She cannot answer this question at once,but can find the answer to it from that book.

A: early
B: now
C: immediately
D:soon

答案:C
解析:
句意为:她不能立刻回答这个问题,但是可以从那本书里找到答案。early意为“早”, now意为“现在”,soon意为“很快”,at once意为“马上”,immediately意为“马上”。

第6题:

Have you found an answer ________ the question?

A、of

B、for

C、on

D、to


参考答案:D

第7题:

Decide on the correct stress pattern of the answer to the question: Where did you see him?

A.We saw him playing by the river.
B.We saw him playing by the river.
C.We saw him playing by the river.
D.We saw him playing by the river.

答案:D
解析:
考查句子重读。问题意为“你们是在哪里看到他的 ”答案应强调地点,即by the river“河边”。

第8题:

Jeff managed to answer the question ( ) the given time.

A、within

B、till

C、by

D、at


参考答案:A

第9题:

This question was ()difficult that no one could answer it.

  • A、too
  • B、very
  • C、so

正确答案:C

第10题:

A customer purchases a virtual media key on a x3650 M3. They ask where to install the key. Which of the following provides the correct answer?()

  • A、Problem Determination and Service Guide
  • B、xRef
  • C、ServerGuide Hardware Reference
  • D、COG

正确答案:A

更多相关问题