皮皮学，免费搜题
登录
搜题
【单选题】
若x 1 、x 2 是方程2x 2 +3x-4=0的两根，则 [ ]A.
x 1 +x 2 =- ，x 1 x 2 =2
B.
x 1 +x 2 = ，x 1 x 2 =-2
C.
x 1 +x 2 =- ，x 1 x 2 =-2
D.
x 1 +x 2 = ，x 1 x 2 =2
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】Match the words or expressions in Column A with those in Column B according to 1)types of meaning changes;2)types of meaning;3)language branches and 4)features of idioms
【单选题】—I would rather _______ you the secret right now. —Why not? [ ]
A.
don’t tell
B.
n ot to tell
C.
not tell
D.
didn’t tell
【简答题】What are the seven types of meaning according to G. Leech?
【单选题】Would you mind ____ me how ____ English words? [ ]
A.
telling; to remember
B.
tell; can I remember
C.
telling; remembering
D.
tell; to remember
【简答题】Explain the seven types of meaning and use examples to illustrate your ideas.（人大2007研；南开大学2004研)
相关题目：