运输食用油的罐车车体为（）色。
A.黄色
B.黑色
C.银灰色
参考答案：A
Being determined is a kind of quality and that's ________ it takes to do anything properly. [ ]
A. how
B. which
C. where
D. what
大量输入库血要注意补钙，一般每输血1000mL，即通过输血管补钙1g。（）
