_________ is the capital of Shandong. [ ]
A. Beijing
B. Qingdao
C. Jinan
D. Dezhou
答案:C
— What time do you usually get up, Rick?
— I usually get up _____ five o'clock. [ ]
A. in
B. at
C. on
D. for
下列有关“化学之最”的叙述中正确的是[ ]
A. 空气中含量最多的物质是氧气
B. 最简单的有机物是乙醇
C. 天然存在的最硬的物质是金刚石
D. 地壳中含量最多的元素是铝