【题目】已知集合A={x|-3≤x＜3},B={x|2＜x≤5}，则A∪B＝（ ）

A．{x|2＜x＜3} B．{x|-3≤x≤5}

C．{x|-3＜x＜5} D．{x|-3＜x≤5}

【题目】已知集合P={1,3}，则满足P∪Q={1,2,3,4}的集合Q的个数是（ ）

A．1 B．2 C．3 D．4

【题目】集合M＝{1,3，a}，N＝{2，a2}．若M∪N＝{1,2,3,4,16}，则a的值为（ ）

A．0 B．1 C．2 D．4

【题目】

--- Have you known Dr Jackson for a long time?

--- Yes, since she the Chinese Society.

A. has joined

B. joins

C. had joined

D. joined

【题目】

We first met on a train in 2010. We both felt immediately that We each other for years.

A. knew

B. have known

C. had known

D. know

【题目】已知集合M＝{x|x＜2且x∈N}，N＝{x|－2＜x＜2且x∈Z}．

（1）写出集合M的子集、真子集；（2）求集合N的子集数、非空真子集数．

【题目】

根据名词后缀的构成方式，写出下列单词的汉语意思

【1】 photographer

【2】pianist

【3】 policeman

【4】 musician

【5】visitor

【6】illness

【7】freedom

【8】 management

【9】growth

【10】 graduation

【题目】

I got caught in the rain and my suit .

A. has ruined

B. had ruined

C. has been ruined

D. had been ruined

【题目】已知集合A＝{－1,3,2m－1}，集合B＝{3，m2}，若BA，则实数m＝________.

【题目】设集合A＝{1,3，a}，B＝{1，a2－a＋1}，且AB，则a的值为________．