【单选题】More people stopped smoking last year than two years ago.
【单选题】在一定温度下,将 150mL,100kPa的氢气与75mL,45kPa的氧气装入250mL的真空瓶,则氢气和氧气的分压分别为( )
【判断题】判断题 (认为下列观点为 Facts 请选择 正确; 认为下列观点为 opinions 请选择 错误) 6. More people stopped smoking than last year ago.
【多选题】IV. Why did people stop using paper money for a long time? (There may be more than one correct answer. )
A.
Paper money was stopped being used because of the poor conditions of economy.
B.
People stopped to use other things because paper money was easier to carry around.
C.
People stopped using paper money because of the inflation.
D.
The Chinese stopped using paper money because of Marco Polo.
E.
The Europeans stopped using paper money because Marco Polo died. 【要求】多选题,请在答案框中填写对应的大写字母(不加点、不空格),如:ABC
【简答题】凸轮机构主要是由____、从动件和机架组成。
【判断题】According to Christakis people who stopped smoking had more connections.
【判断题】()凸轮机构主要是由凸轮、从动件和机架三个基本构件所组成。