It seems that the aged people ________ the H7N9 more easily from the recent cases.
A.pick up B. mix up C. set up D. use up
It seems that the aged people ________ the H7N9 more easily from the recent cases.
A.pick up B. mix up C. set up D. use up
A
解析：根据最近的情况，好像老年人更容易感染H7N9病毒。
A 项表示感染；患病。B项表示搅拌；混合 。C项表示建立 。D项表示用完；耗尽。根据题意，选择A。
考点：本题考查动词词组辨析。
难度：C