A:Should; hesitate
B:Was; hesitating
C:Did; hesitate
D:Had; hesitated
______Christmas coming near, they began to be busy shopping for the holiday.
某公司的生产量在七个月之内的增长变化情况如图所示,从图上看,下列结论不正确的是( )
下面字母各表示几:
A=____ ,B=____ ,C=____ ,D=____ .