下列物质不能从石油中提取的是( )
A.汽油
B.柴油
C.煤焦油
D.润滑油
答案:C
I made a promise to myself _______ this year, my first year in high school, would be different.
A.whether
B.that
C.what
D.when
干咳或刺激性咳嗽常见于下列哪种疾病()。
A.急性或慢性咽喉炎
B.支气管扩张症
C.慢性支气管炎
D.肺脓肿
E.肺炎