有利于控制温室效应的措施是() ①大量植树造林 ②用大量氢氧化钠液吸收 ③防止CH4到空气中:④化石燃料的燃烧 ⑤充分利用太阳能、风能等清洁能源;⑥控制白色污染:⑦不要往河里乱扔垃圾 A . ①②③ B . ④⑤⑥ C . ①③⑦ D . ①③④⑤ 答案:D
选出下列各句的答语,写在相应的位置上
1.Whose book is it?________
2.Is this your ruler?________
3.How much is the doll?________
4.Whose CDs are these?________
5.How much are the pencils?________
6.Here's the money.________