问题
选择题
下列叙述正确的是（ ）
A．1mol H2O的质量为18g/mol
B．CO2的摩尔质量为44g
C．3.01×1023个SO2分子的质量为32g
D．标准状况下，1mol任何物质体积均为22.4L
答案
答案：C
搜题请搜索小程序“爱下问搜题”
下列叙述正确的是（ ）
A．1mol H2O的质量为18g/mol
B．CO2的摩尔质量为44g
C．3.01×1023个SO2分子的质量为32g
D．标准状况下，1mol任何物质体积均为22.4L
答案：C
| 阅读理解。 | |||||
Bayfield shopping Coupons Bayfield 购物券
| |||||
| 1. If you spend 100 dollars or more, you can _____. | |||||
| A. get a CD free B. get 6 hours of free parking C. get some stamps free | |||||
| 2. Buy one tie at Daniel's Menswear, you may get another ______ free. | |||||
| A. cheaper tie B. more expensive tie C. tie of the same price | |||||
| 3. You can get a 10% discount on any books if you ______ at the Book Store. | |||||
| A. buy some gifts B. buy some tickets C. show this coupon | |||||
| 4. If you want to have free soft drink, you can go to ______. | |||||
| A. Mike's Café B. The Book Store C. Daniel's Menswear | |||||
| 5. If John pays 10 dollars for a full-price movie ticket on Tuesdays; he can buy a second ticket for only ______. | |||||
| A. 5 dollars B. 10 dollars C. 15 dollars |