右心功能不全引起的水肿主要因（）
A.淋巴回流受阻
B.血浆蛋白降低
C.毛细血管内压力增高
D.下肢静脉血栓形成
E.下肢动脉梗阻
参考答案：C
There is no doubt that students ________in their study if they more praise from their teachers.
A．will make progress; will get
B．make progress; get
C．will make progress; get
D．make progress; will get
消防轻型安全绳的正常退役年限是（）年。
A.3.0
B.2.0
C.1.0
D.4.0
