碳素钢、16MnR钢容器进行液压试验时，液体温度不得低于（）℃。
A.5℃
B.10℃
C.5℃
D.0℃
参考答案：A
叙述尿液自肾 * * 排出体外的途径。
Don't go too far, _____ you might lose your way. It's not easy to find you in the
crowds. [ ]
A. so
B. or
C. but
D. and
