阴血不足,内有虚火多见()
A.白睛发红
B.两眦赤痛
C.睑缘赤烂
D.全目赤肿
E.两眦红润
参考答案:D
Each box is an activity; the number it contains is the duration of the activity in days. The duration of the critical path is () .
A.16 days
B.14 days
C.19 days
D.20 days
爆破信号必须同时包括()等信号。
A.预警信号
B.起爆信号
C.解除信号