被称为抗动脉粥样硬化因子的是（）
A.LDL
B.LPA.
C.HDL
D.胆固醇
E.CM
参考答案：C
Read and fill. 请根据自己的理解和提示写出单词，补全对话(每空一词)。
A: Wake up. It's time 1. get up.
B: 2. ____ 3. is it?
A: It's 4.____(八点) o'clock.
B: Oh! It's 5. to go to the 6. (农场).
A: Why?
B: We'll have a party there. There are 7. (许多) vegetables.
汽油的蒸汽压过大，说明汽油中轻组分（）。
