广泛采用的厂内外运输方式是( )。
A.标准轨距铁路运输 B.汽车运输C.水上运输 D.带式输送机运输
参考答案:B
(2013·高考江苏卷)—What about your selfdrive trip yesterday?
—Tiring! The road is being widened,and we ________a rough ride.
A.had
B.have
C.would have
D.have had
下列各组物质中,化学键类型完全相同的是[ ]
A.Cl2和CCl4
B.HI和NaI
C.H2S和CO2
D.F2和NaBr