本课配套习题挑战模式3/5
单选题
难度系数:
3.2. 如果,那么的值是()
A: -2 |
B: -3 |
C: -4 |
D: 4 |
一次做对,真牛!
+5奖励规则>
- 提示1:6YCa6L+H5p2h5Lu25YWI56Gu5a6aYSxi55qE5YC8
- 答案:QQ==
4oi1PGltZyB3aWR0aD0xMzggaGVpZ2h0PTI4IHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvNzMvMjQvckJBQ0UxVElwQUt3VW5kUUFBQURJU2VLZUNFMzk5LnBuZyI+77yM4oi0YT0xLGI9LTMu5bim5YWlPGltZyB3aWR0aD02NyBoZWlnaHQ9NDQgc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC8zRS9CMC9yQkFDSmxUSXBBTEFMMzgtQUFBQ0JQdExvUzA4MjYucG5nIj49LTI=
本课配套习题挑战模式5/5
单选题
难度系数:
5.4. 下列式子中正确的是()
A: |
B: |
C: |
D: |
一次做对,真牛!
+5奖励规则>
- 提示1:5YWI56Gu5a6a5q2j5pWw6LSf5pWw77yM566A5Y2V5o6S5YiX5aSn5bCP77yb5YaN57uG5YyW
- 答案:Qw==
PGltZyB3aWR0aD0yNDQgaGVpZ2h0PTQyIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvNzMvMjQvckJBQ0UxVElwQXZ5NzBsb0FBQURPUlcxeFlnNjE2LnBuZyI+4oi1PGltZyB3aWR0aD05MCBoZWlnaHQ9MjEgc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC8zRS9FRi9yQkFDSjFUSXBBdlQwM21JQUFBQ0RZT3BGVGsxOTIucG5nIj4s4oi0PGltZyB3aWR0aD0xNjcgaGVpZ2h0PTM0IHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvQUEvMzMvckJBQ0ZGVElwQXZURjlTTUFBQURoM3ZNcFg0MjY5LnBuZyI+