简述影响态度与品德学习的一般条件。

Statistics show that in the past three decades grain production around the world has ______ sharply but

it still can't ______ the rapid growth of population, as a result, a lot of people in undeveloped countries

have to go hungry. [ ]

A. expanded; keep in touch with                  

B. increased; keep pace with   

C. grown; keep up with                        

D. accumulated; catch up with

在带控制点的工艺流程图中，主物料管线用（）绘制。

A、虚线

B、细实线

C、中实线

D、粗实线

为预防甲型流感的主要措施是（）

A.注射丙种球蛋白

B.接种疫苗

C.口服金刚烷胺

D.注意空气消毒

E.避免到公共场所