已知 (x2+6x+9)+6(x+3)+9=0 , 那么 x=?
如果 x是一个整数,那么 x的值是多少 ?
(1). –2(x+5)<-1
(2).-3x>9
欧洲的一个动物保护组织正努力改变长期以来把蝙蝠看作一种令人恐怖的动物的印象。该组织争论说蝙蝠让人害怕和烦乱仅仅是因为它们见人就躲避,且仅在夜间活动。以下哪一选项,如果是正确的,将对该组织的争论的准确性提出最严重的质疑 ?
If you get your bank to generate a money order, it usually ______ conversion fees.
Every man and every woman working here _____ with me.
某食堂采购 4 类(各蔬菜名称的后一个字相同,即为一类 )共 12 种蔬菜:芹菜、菠菜、韭菜、青椒、紅椒、黄椒、黄瓜、冬瓜、丝瓜、扁豆、毛豆、豇豆。并根据若干条件将其分成 3组,准备在早中晩三餐中分別使用。已知条件如下:
(1)同一类别的蔬菜不在一组;
(2)芹菜不能在黄椒一组,冬瓜不能在扁豆一组;
(3)毛豆必须与红椒或韭菜同一组:
(4)黄椒必須与虹豆同一組。
如果韭菜、青椒与黄瓜在同一组,则可得出以下哪项 ?
In order to live the kind of life we want and to be the person we want to be ,we have to do more than just ________with events .
I have been studying here for four years, by next summer I ________.
The team played hard because the championship of the state was______.
The poor countries are extremely _______to international economic fluctuations