俗语：“一个篱笆一个桩，一个好汉三个帮”说的是若要成事，人与人就需要[ ]
A、团结协作
B、很多朋友
C、找帮手
D、先打基础
答案：A
(2013·石家庄高三二模)—Jack, this is the third time that you have been late this week.
—Sorry, sir, but I was ________ for 15 minutes on the way here in the traffic jam.
A．given up
B．put up
C．taken up
D．held up
用于呼吸道炎症，痰多不易咯出者：
A．可待因
B．喷托维林
C．二者均可
D．二者均不可
