计算(-3)2-(-3)3-22+(-2)2的结果是( )
A.36
B.-18
C.-36
D.18
原式=9-(-27)-4+4
=9+27-4+4
=36.
故选A.
根据下列情景,选择最佳答案。
1. 晚上睡觉前你应跟爸爸妈妈说:[ ]
A. Good night.
B. Good afternoon.
C. Good evening.
2. 你想告诉别人你不喜欢吃鱼时,应该说:[ ]
A. I don't like fish.
B. I like fish.
C. I don't like chicken.
3. 你想知道你的朋友想干什么时,你可以问:[ ]
A. What are you doing?
B. What do you want to do?
C. Do you want to play ping-pong?
4. 你想知道你朋友的书在哪儿时,你可以问:[ ]
A. Where is your book?
B. What is it?
C. Is this your book?
5. 你想请好朋友喝饮料时,你可以说: [ ]
A. Would you like some tea?
B. Would you like some water?
C. Would you like some pop?
旅客所持临时居民身份证过期,()以内经安检部门值班领导批准放行。
A.10天
B.15天
C.30天
D.90天