散发性先天性甲低最根本的治疗方法是（）。 A.保暖 B.保证营养供应 C.保持大便通

Helen doesn't know how much I spent in repairing the house. If she ever found out, I' m sure she _____ me.[ ]

A. will never forgive

B. would never forgive

C. does not forgive

D. never forgives

在增值税中，只准许抵扣当期计入产品成本的折旧部分的增值税类型是（）。

A.收入型

B.生产型

C.消费型

D.混合型

安全帽有什么作用？

You hear on the radiotelephone the word “Securite” spoken three times. This indicates that（）.

A.a message about the safety of navigation will follow

B.a message of an urgent nature about the safety of a ship will follow

C.the sender is in distress and requests immediate assistance

D.you should secure your radiotelephone

车辆轮胎的检查项目有哪些？