问题
选择题
在下列计算结果是正号的是（ ）
|
答案
A、-
÷5×(-2010)3 5
=-
×(-2010)3 25
=
，1206 5
故本选项正确；
B、-12×（-2）×3×（-4）
=-1×（-2）×3×（-4）
=-24，
故本选项错误；
C、（-6）+5
=-6+5
=-1，
故本选项错误；
D、-3-5=-8，
故本选项错误．
故选A．
搜题请搜索小程序“爱下问搜题”
在下列计算结果是正号的是（ ）
|
A、-
÷5×(-2010)3 5
=-
×(-2010)3 25
=
，1206 5
故本选项正确；
B、-12×（-2）×3×（-4）
=-1×（-2）×3×（-4）
=-24，
故本选项错误；
C、（-6）+5
=-6+5
=-1，
故本选项错误；
D、-3-5=-8，
故本选项错误．
故选A．
| 补全对话 | |
B: Yes, that's right. 1 We need some photos of animals. A: Do you know how to get there? B: Yes, I've got a map. 2 A: What do you know about it? B: It's an area where there are lots of different animals. A: 3 B:I know there are many different kinds of birds.Oh, look at those photos of birds. 4 A: Wow, how beautiful! I'm going to take my camera with me. And I'm in with a chance to win. B: Why? A: My digital camera works very well, and I'm interested in taking photos. B: 5 | |
| 1. _____ 2. _____ 3. _____ 4. _____ 5. _____ |