牡丹皮能治疗（）
A.肠痈腹痛
B.无汗骨蒸
C.血热吐衄
D.血滞经闭
E.小儿急惊
参考答案：A, B, C, D
Only when __________________ permission _______________ allowed to enter the lab.
A．a teacher has given; are the students
B．has a teacher given; are the students.
C．has a teacher given; the students are
D．a teacher has given; the students are
斜坡堤土工织物铺设块的拼缝宜采用“丁缝”或“包缝”连接，但在长度方向（主要受力方向）（）接头缝。
A.不得有
B.可以有
C.可有少量
D.根据需要可有
