挑战习题
1/5单选题
难度:

1.

计算(-1)2+(-1)3=()


A

-2

B

-1

C

0

D

2

提示1:
PHA+5rOo5oSP6LSf5pWw55qE5aWH5qyh5bmC77yM6LSf5pWw55qE5YG25qyh5bmCPC9wPg==
正确答案:Qw==
PHA+5Y6f5byPPTEr77yILTHvvIk9MO+8jOaVhemAiUM8L3A+