直肠下部不可忽视的检查方法是:()
A.肛门视诊
B.肛门指诊
C.钡灌肠X线检查
D.乙状结肠镜检查
E.以上均不对
参考答案:B
We'd better try to ____ with the experiment, I think. Now let's ____ with it. [ ]
A. go through; go on
B. go on; go over
C. go over; go through
D. go on; go through
由于国家出台对房屋的限购令,我省某地的房屋价格原价为2400元/平方米,通过连续两次降价a%后,售价变为2000元/平方米,下列方程中正确的是______。
A.2400(1-a%2)=2000 B.2000(1-a%2)=2400C.2400(1+a%)2=2000 D.2400(1-a%)2=2000