【简答题】已知函数 , (1)若函数 在点 处的切线斜率为1,求 的值; (2)在(1)的条件下,对任意 ,函数 在区间 总存在极值,求 的取值范围; (3)若 ,对于函数 在 上至少存在一个 使得 成立,求实数 的取值范围。
【单选题】以下电磁辐射区域中,能量最大的是( )。
【多选题】下面已列入《世界文化遗产》的景点有:( )。
【单选题】听力原文:W: How do you like my coat? M: I couldn't like it better! The color is not too colorful and it fits all kinds of people. Q: What's the man's attitude about the coat? (15)
C.
He says the coat is wonderful.
D.
He says the coat doesn't fit all kinds of people.
【简答题】给下面的句子找到适当的答语。 ( )1. What color is her coat? ( )2. What kind of movies do you like? ( )3. How much is the sweater? ( )4. Is it an apple or an orange? ( )5. Which is your father? ( ...
【单选题】The color of my coat is different from ____ of yours.