给企业造成危害,是指()。
A.给企业造成负面影响
B.给企业造成经济损失
C.给企业员工造成身心损害
D.给企业员工造成经济损失
参考答案:A, B, C, D
用所给单词的正确形式填空。
1. My little brother ______ (play) football yesterday.
2. We didn't _______ (walk) in the park.
3. ______ (do) you watch TV last Sunday?
4. Did you ______ (help) your grandma last night?
5. It ______ (rain) here yesterday.
已知a、b、c满足a﹣b=8,ab+c2+16=0,则2a+b+c=( )。