2(x﹣3y)+(y﹣2x).
解:原式=2x﹣6y+y﹣2x=﹣5y.
My friend Martin was very sick with a strange fever; _______, he could neither eat nor sleep. [ ]
A. as a result
B. after all
C. any way
D. otherwise
下面是某求助者的EPQ、SDS测验结果 粗分 T分 P 7 60 E 10 50 N 3 30 L 4 35 SDS总粗分 53
该求助者SDS得分表明其出现()。
A.轻度抑郁
B.中度抑郁
C.轻度焦虑
D.中度焦虑