问题
选择题
Scientists are trying to ways to treat the terrible disease called H7N9.
A．come up with
B．give in
C．talk about
D．give up
答案
答案：A
题目分析：句意：科学家们正在设法想出方法来对待叫做H7N9的疾病。A. come up with想出，提出 ； B. give in放弃； C. talk about 谈论； D. give up放弃；根据语境故选A.