用于志贺菌和沙门菌分离的培养基是（）
A.血平板
B.麦康凯平板
C.营养肉汤
D.SS琼脂
E.TCBS琼脂
参考答案：D
Our city has experienced ___this year as it did last year.
A．twice as much rain
B．rain twice as much
C．as twice much rain
D．twice rain as much
有定义语句：“int x，y；”，若要通过“scanf("%d,%d,&x,&y)；”语句使变量x得到数值11，变量y得到数值12，下面四组输入形式中，错误的是
A) 11 12＜回车＞ B) 11， 12＜回车＞C) 11,12＜回车＞ D) 11，＜回车＞ 12＜回车＞
