在①﹣a5(﹣a),②(﹣a6)÷(﹣a3),③(﹣a2)3(a3)2,④[﹣(﹣a)2]5中,计算结果为﹣a10的有[ ]
A.①②
B.③④
C.②④
D.④
答案:D
— How was your job interview?
— Oh, I couldn’t feel ______. I hardly found proper answers to most of the questions they asked.
A.better
B.easier
C.worse
D.happier
违反法律法规和政策规定,组织或引发罢运、围堵政府机关及管理机构等过激行为,严重扰乱社会公众秩序和损害社会公共利益的,考核等级定为()。
A.AA级
B.AAA级
C.A级
D.B级