江面狭窄、滩多流急、峭壁高耸、雄伟壮观的景观一般出现在[ ]
A.长江上游
B.长江中游
C.长江下游
D.长江三角洲
答案:A
Our knowledge of computers _____ growing all the time. [ ]
A. be
B. is
C. are
D. were
患者,女,28岁,胸膈胀闷,上气喘急,心下痞满,不思饮食,腹满胀痛,大便秘结,嗳气,脉弦,宜首选()
A.乌药
B.青皮
C.柿蒂
D.丁香
E.大腹皮