以下可以作为油料作物的是（）。
A.花生
B.大豆
C.蓖麻
D.油菜
E.向日葵
F.高油玉米
参考答案：A, B, C, D, E, F
小题1:Which of the following will help to improve your speech?
A．IELTS Listening .
B．Car and Driver.
C．Quick & Easy Meals.
D．Designing Effective Speech Interfaces.小题2:Who will probably be interested in Quick & Easy Meals?
A．Car fans.
B．English speakers.
C．Housewives.
D．Businessmen.小题3:How many of the four short passages are introductions of books?
A．One.
B．Two.
C．Three.
D．Four.
在电力工程直流系统中，电缆截面的计算电流选取正确的是哪几项？（）
A.蓄电池回路为蓄电池1h放电率电流
B.直流电动机回路为2倍的电动机额定电流
C.电磁机构合闸回路为合闸线圈合闸电流
D.直流事故照明回路为照明馈线计算电流
