单负链RNA病毒本身具有哪种酶（） A.解链酶 B.水解酶 C.DNA多聚酶 D.依

A 20-year-old mother of a premature newborn smoked cigarettes during her pregnancy. Her son is a client in a neonatal intensive care unit and has a diagnosis of acute respiratory distress syndrome. Because the mother is Roman Catholic, which nursing intervention would be most appropriate for the nurse to discuss with her（）

A. Baptism of the infant.

B. Circumcision of the infant.

C. Last rites for the infant.

D. Sacraments of the sick for the mother.

目前认为蛋白C系统除蛋白C外，还包括__________、_____________和___________。

141. Beds, chairs, tables and desks are ______.

A．furnitures

B．furniture

C．a piece of furniture

D．articles of furnitures

培训目的的确定和编写是编写教案的首要任务。 ( )

某国内汽车制造厂对中国经济增长潜力抱着乐观态度，除继续生产中等档次的车种外，在 2009年开始生产高端越野车，希望吸引国内市场的高端消费者。这种做法属于( )。

A．市场渗透
B．市场细分
C．工业细分
D．产品分散化