The cost of natural gas is significantly less than that of diesel and gasoline．

Now my house is less drafty and it helps a bit with the gas bill.

Small cars use less gas than large cars. The amount of gas that a car uses is ______________ to its size. A: forbid B: appropriate C: elated D: supply

Natural gas give less carbon dioxide than coal. A: up B: in C: down D: off

7. According to the Meatless Monday, what can people gain from eating less meat? A: Better physical conditions. B: Less household expenses on food. C: More greenhouse gas emissions. D: Less consumption of air.

A light(轻的) gas, such as hydrogen(氢), is much less dense(稠的) than air is at the same pressure.

Natural gas__1__less carbon dioxide than coal.(give)

下列程序的运行结果是（ ）。t = 0 while t < 5: print(t, " is less than 5") t = t + 1else: print(t, " is not less than 5") A: 0 is less than 51 is less than 52 is less than 53 is less than 54 is less than 55 is not less than 5 B: 1 is less than 52 is less than 53 is less than 54 is less than 55 is less than 55 is not less than 5 C: 0 is less than 51 is less than 52 is less than 53 is less than 54 is less than 5 D: 1 is less than 52 is less than 53 is less than 54 is less than 55 is less than 5

If you smell gas, ______ the gas, leave the house, and call the gas company.

Money market securities usually have a maturity of: () A: more than 1 year B: less than 1 year C: 1<br/>to 3 years D: less than 91 days