【简答题】将下列句子变为被动句: He broke the window yesterday.
【单选题】人类只有一个共同的家园--地球.下列做法不利于改善人类生存环境的是( )
A.
我国从今年6月1日起强制执行“限塑令”,提倡改用竹蓝或布袋,尽量减少塑料袋的使用,控制“白色污染”
C.
目前世界上正出现粮食危机,可采用毁林开荒,扩大粮食种植面积的办法,以解决粮食短缺的问题
D.
城市生活污水、工业“废水”必须经过处理达标后才能排放
【单选题】校园一卡通的初始默认密码为( ),密码可自行修改。
【单选题】The boy got a good beating, _ _____he broke the window.
【单选题】A rapid reduction in the effect of a given dose of a drug after only one or two doses. Choose the term with which it is most likely to be associated.
【判断题】平板拼接焊时,焊接顺序通常为先焊短焊缝,后焊长焊缝。( )
【单选题】监管方式代码为“2700”,对应的监管方式为( )
【单选题】According to researchers, which chemical is most closely children. Do you think this related to successful long-term relationships?
C.
serotonin for in a mate these days?
【单选题】广播、电视的出现开创了_____的通信手段。