拌与炝具有()的特点。
A、拌的清脆爽口、炝的口味清淡
B、拌的清脆爽口、炝的色泽鲜艳
C、拌的色泽鲜艳、炝的口味清淡
D、拌的口味清淡、炝的清脆爽口
参考答案:B
Though ______, many laws of nature exist.
A.not having been discovered
B.having not been discovered
C.not having discovered
D.having not discovered
结肠定位肠溶片的崩解时限(pH7.8~8.0的磷酸盐缓冲液)是().
A.3分钟
B.15分钟
C.20分钟
D.30分钟
E.60分钟