在经验中可以测量的,具有两个或两个以上可取值的是( )
A.概念 B.变量C.理论 D.命题
参考答案:B
动词填空 用括号内所给动词的适当形式填空。(本大题共8分,每小题1分)
小题1:The clean water ________ (provide) for the people in disaster areas as soon as it arrives.
小题2:He had difficulty __________ (pass) the driving test yesterday.
小题3:Little Bob _________ (put) all his effort into study before he went abroad.
小题4:The women (chat) with the visitors happily when I entered the room.
小题5:She asked us whether we (travel) to Tibet with her in the coming summer holidays.
小题6:During yesterday’s visit in Beijing University, we _________ (remind) not to step on the grass.
小题7:The girl _________ (prefer) to go on a trip rather than watch at home last weekend.
小题8:There is something wrong with my bike. I want to have it (fix) at once.
加工性原料按其属性可分为畜类制品、禽类制品、水产制品、蛋奶制品、粮食制品、蔬菜制品、()7类。
A.调味制品
B.水果制品
C.腌渍制品
D.干货制品