【单选题】According to the investigators, ______.
A.
the new and more sophisticated games allow the players to take part in real violent acts
B.
the new and more sophisticated games teach the players how to kill other people
C.
most computer and online games make the players forget the real life results
D.
most computer and online games may cultivate young people with bad manners
【简答题】听问句选答语。 ( )1. A. I am. ( )2. A. Yes, I can. ( )3. A. My hands hurt. ( )4. A. I want to take a picture. ( )5. A. Yes, I am. B. They're crying. B. I can ride a bike. B. He's writing ...
【简答题】一个物体放在球面镜前面20cm的地方,所成的像跟物体在镜面的同一侧,距离镜面40cm,试判断这个球面镜是凸面镜还是凹面镜?焦距是多大?如果所成的像是在镜面的另一侧,距离镜面也是40cm,那么这个球面镜是凸面镜还是凹面镜,焦距又是多少?
【多选题】按《中华人民共和国招标投标法》相关,以下说法正确的是( )。
A.
投标准备时间从开始发放招标文件之日起至开标之日止最短不得少于15日
B.
招标人对已发出的招标文件进行修改时,应当在开标前20日进行
D.
评标结束后,招标人最迟应当在投标有效期结束日30个工作日前确定中标人
E.
招标人和中标人应当自中标通知书发出之日起30日之内按规定订立书面合同
【单选题】发动机正常工作时,火花塞绝缘体裙部的温度应保持在(),该温度为火花塞的自洁温度。
【简答题】If we want to get some information about a new country, we could __________.