【单选题】According to Paragraph 2 ______.
A.
people of higher status are less likely to be stricken with diarrhea
B.
diarrhea is no longer a serious disease in the modem world
C.
diarrhea has been a threat to humanity throughout history
D.
the elderly are more likely attacked by diarrhea than the young
【单选题】It can be inferred from Paragraph 2 that human society will become increasingly ______.
A.
worried about life on other planets.
B.
dependent on space tourism.
C.
accustomed to long-distance flights.
D.
associated with space exploration.
【单选题】下列关于处方日剂量(PDD)的叙述,错误的有
A.
用PDD值进行的推算是合理的,但不一定很精确
C.
是从有代表性的处方样本中得到的日平均处方剂量
E.
DDD方法较PDD方法能更准确地反映人群药物暴露的情况
【简答题】极地是令人向往而充满神奇的地方,是一块待开垦的,就此回答1~2题 1、读南极地区图,下列叙述中错误的是 [ ] A.①所在地是南美洲 B.②地是中国的长城站 C.③所在地是太平洋 D.①地位于③地的东北方向 2、有一位建筑师,想要建一座房子,房子四面的窗子都朝向北方。你认为应建在哪里? [ ] A、北极点 B、南极点 C、赤道上 D、本初子午线上
【单选题】下列A、B、C、D中有一处是错误的地方,请找出相应的错误字母代码。细胞减数分裂I中期,每条染色体含A2条染色单体,着丝点B分裂,染色体排在C赤道板两侧,此时染色体紧缩至D最短。