历代医家提出鼓胀的病理因素分类有
A．气
B．血
C．水
D．痰
E．虫
参考答案：A,B,C,E
The construction of the gym caused much noise, __________ it difficult for people nearby to sleep.
A．made
B．to make
C．making
D．having made
CO2气体保护焊焊丝伸出长度取决于焊丝（），伸长度约等于焊丝直径（）倍较合适。
