What does the word “this” underlined in the third paragraph refer to?
A.We will lose much more than we can gain.
B.Humans have begun destroying rainforests.
C.People have a strong desire for resources.
D.Much carbon dioxide comes from burning rainforests.
第1题:
4.—_________ Mike________ his homework in the evening?
—No,he doesn't.
A. Do;does
B. Does;do
C. Do;do
D. Does;does
第2题:
第3题:
执行下列语句之后,正确的是() float m=100, n=200; float &refer_m=m, &refer_n=n;
A.&refer_m=n;
B.*refer_m=*refer_n;
C.refer_m=refer_n;
D.&refer_m=&refer_n;
第4题:
第5题:
第6题:
3、执行下列语句之后,正确的是() float m=100, n=200; float &refer_m=m, &refer_n=n;
A.&refer_m=n;
B.*refer_m=*refer_n;
C.refer_m=refer_n;
D.&refer_m=&refer_n;