可供临床治疗选择使用、疗效好、比甲类目录中的同类药品略高的城镇职工基本医疗保险用药是E.
Read the whole article after ________.
[A] you have got all the information about the problem
[B] you understand the title
[C] you have read one paragraph after another
[D] you are clear about what to be discussed
“Do you hear someone knocking at the door?” “Yes, I did. I heard him ________ three times.”
[A] knocking
[B] knocked
[C] being knocking
[D] knock