常见的水循环故障有哪些?
参考答案:
有循环的停滞和倒流、汽水分层、下降管带汽三种。
The old man is badly ill and he needs ___________ to hospital at once.
A.to be taken
B.to take
C.be taken
D.taken
企业在多家银行开户属于企业财务风险范畴。()