鼻饲时最后注入温开水的目的是
A．避免食物在管内变质，造成胃炎B．避免食物逆流C．使病人舒适D．利于食物的消化吸收E．冲通胃管
参考答案：A
The shopkeeper did not want to sell for _____ he thought was not enough. [ ]
A. where
B. how
C. what
D. which
说明三相负载角形连接时，相电压放线电压、相电流和线电流之间的关系。
