嗜纤维菌属的一些种和黏细菌所以著名,因为它们()。 A.能产生致病的毒素 B.倾向于

题型:单项选择题

问题:

嗜纤维菌属的一些种和黏细菌所以著名,因为它们()。

A.能产生致病的毒素

B.倾向于产生吸收光的色素

C.能够滑行

D.能够形成芽孢

考点:微生物学微生物学综合练习微生物学综合练习题库
题型:单项选择题

英美两国都采用两党制,但是却存在以下比较显著的差异

①英国两党组织严密,美国两党组织涣散

②英美两党的纲领政策都出现了中间道路化趋势

③英国两党主要竞逐议会选举,美国两党无需竞逐国会选举

④英国执政党与议会多数党是一致的,美国执政党与议会多数党不一定一致

A.①③

B.①④

C.②③

D.③④

题型:单项选择题

Play is very important for humans from birth to death. Play is not meant to be just for children. It is a form of (1) that can tap into your creativity, and can allow you the chance to find your inner child and the inner child of others. I have collected the (2) of play here.
Play can stimulate you (3) . It can go against all the rules, and change the same (4) . Walt Disney was devoted to play, and his willingness to (5) changed the world of entertainment. The next time you are stuck in a (6) way of life, puI1 out a box of color pencils, modeling clay, glue and scissors, and (7) and break free. You will be amazed at the way your thinking (8) .
Playing can bring greater joy into your life. What do you think the world would be like if (9) each day in play I bet just asking you this question has (10) . Play creates laughter, joy, entertainment, (11) . Starting today, try to get 30 minutes each day to engage in some form of play, and (12) rise!
Play is known (13) . Studies show that, as humans, play is part of our nature. We have the need to play because it is instinctive and (14) . With regular play, our problem-solving and (15) will be in much better shape to handle this complex world, and we are much more likely to choose (16) as they arise. It creates laughter and freedom that can instantly reduce stress and (17) to our daily living.
Play can (18) , curiosity, and creativity. Research shows that play is both a "hands-on" and "minds-on" learning process. It produces a deeper, (19) of the world and its possibilities. We begin giving meaning to life through story making, and playing out (20) .

题型:单项选择题

直线/职能冲突

题型:单项选择题

唐氏综合征患儿染色体核型标准型为()

A.46,XX,-14,+t(14q:21q)

B.47,XX,+21

C.45,XX,-14,-21,+t(14q:21q)

D.47,XXX

E.46,XX,-21,+t(21q:21q)

题型:单项选择题

居民收入按其来源的性质不同,可以分为()。

A.劳动收入

B.利息收入

C.利润收入

D.非劳动收入

更多题库