原式=3+1-3+1+1
=3．
We don’t have enough nurses to look after the patients. At least _____ are needed.
A．ten another nurses
B．more ten nurses
C．other ten nurses
D．another ten nurses
水渍险的责任范围除包括平安险的各项责任外，还负责被保货物由于恶劣气候、雷电、海啸、地震、洪水等自然灾害造成的部分损失。（）
