零余额结清冲正是指对（）错误操作的冲正。 A.上年 B.结息期内 C.当日

A client with diabetes is explaining to the nurse how he cares for his feet at home. The nurse could judge from which of the following statements that the client needs further instruction on how to care for his feet properly

A．"I inspect my feet once a week for cuts and redness. "

B．"I am not allowed to use a heating pad on my feet. "

C．"It is important to dry my feet carefully after my bath. "

D．"I should not go barefoot, even in my home. "

假定某一现象每年绝对增长量是稳定的，则年增长速度的变化趋势是（）。

A．稳定不变

B．有所上升

C．有所下降

D．有升有降

微分方程的通解是（）。

A.x²+y²=C(C∈R)

B.x²-y²=C(C∈R)

C.x²+y²=C²(C∈R)

D.x²-y²=C²(C∈R)

在钻具磷化作业时，磷化液溅到皮肤上应如何处理？

中政会与国民政府的关系。