我国《合同法》第四十八条中规定，相对人可以催告被代理人在（）内予以追认。
A.半个月
B.1个月
C.2个月
D.3个月
参考答案：B
After the new technique was applied to production, the factory has produced ______ over the same period last year.
A．many cars twice as
B．twice as many as cars
C．twice cars as many as
D．twice as many cars as
测定水性涂料甲醛时，使用的比色皿和比色波长分别是（）。
A、10mm，630nm
B、5mm，630nm
C、10mm，412nm
D、5mm，412nm
