把a=8,b=9代入式子3a+2b可得,
3a+2b
=8×3+2×9
=24+18
=42;
故选:B.
-What did your parents think about your decision?
-They always let me do ____ I think I should.[ ]
A. when
B. that
C. how
D. what
患者女性,43岁,肺部听诊可闻及大水泡音,该患者的诊断是
A.支气管炎
B.支气管肺炎
C.支气管扩张症
D.肺梗死
E.肺泡炎