—Were you at home at 9:00 last night? I called you but nobody answered.—Sorry, I ________ at that time.
A:take a shower
B:took a shower
C:was taking a shower
D:am taking a shower
分数的倒数都大于1。
人体每天摄入800克食物和1200毫升水的情况下,消化腺大致分泌1500毫升唾液、2000毫升胃液、1500毫升肠液、500毫升胆汁、1500毫升胰液.据此可以判断消化道中消化液最多的是( )
跛____ 忿忿____ 究竟____ 详细____