合伙企业是指自然人、法人和其他组织依照本法在中国境内设立的（）企业。
A.普通合伙
B.有限合伙
C.一般合伙
D.特殊合伙
参考答案：A, B
The weather was so bad that we had to ______. Our journey became a failure.
A．turn back
B．turn away
C．turn about
D．turn round
绝缘导线的接头距导线的固定点，不应小于( )。
A．400mm
B．500mm
C．600mm
D．700mm
