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【单选题】
以溶剂进行中和滴定的原理是：H 3 O + +OH - =2H 2 O．已知液态SO 2 和纯水的导电性相近，因为液态SO 2 也会发生自离SO 2 （l）+SO 2 （l）?SO 3 2- +SO 2+ ．若以液态SO 2 为溶剂，用SOCl 2 滴定Cs 2 SO 3 ，则以下叙述错误的是（ ）A.
该滴定反应可以表示为：SO 3 2- +SO 2+ =2SO 2
B.
在一定温度下，液态SO 2 中c（SO 3 2- ）与c（SO 2+ ）的乘积是一个常数
C.
自离解的存在，说明SO 2 是离子化合物
D.
可通过导电能力变化来判断是否到达滴定终点
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【多选题】Prohibited activities by the Assisted Human Reproduction Act (2004) in Canada include:
A.
creating an in vitro embryo for any purpose other than creating a human being or improving or providing instruction in assisted reproduction procedures.
B.
human cloning
C.
Pre-selecting or increasing the probability that an embryo will be a particular sex (except to prevent a sex-linked genetic condition).
D.
transplanting a sperm, egg, embryo or fetus of a non-human life form into a human being, or using a sperm, egg, or in vitro embryo that was transplanted into a non-human life form to create a human being.
【多选题】An introductory sentence for a brief summary of the passage is provided below. Complete the summary by selecting the THREE answer choices that express the most important ideas in the passage. Some sen...
A.
The presence of theater in almost all societies is thought to have occurred because early storytellers traveled to different groups to tell their stories.
B.
Many theorists believe that theater arises when societies act out myths to preserve social well-being.
C.
The more sophisticated societies became, the better they could influence desirable occurrences through ritualized theater.
D.
Some theories of theater development focus on how theater was used by group leaders to group leaders govern other members of society.
E.
Theater may have come from pleasure humans receive from storytelling and moving rhythmically.
F.
The human capacities for imitation and fantasy are considered possible reasons why societies develop theater.
【简答题】用经纬仪对某角观测4次,由观测结果算得观测值中误差为±20″,则该角的算术平均值中误差为 ．
【单选题】"Interpretation" can be defined as
A.
the process by which the receiver reacts to the sender's message.
B.
the process of screening, selecting, and interpreting stimuli so that they have meaning to the individual.
C.
the facts, ideas, feelings, reactions, or thoughts that exist within individuals and act as a set of filters for interpreting the decoded messages.
D.
small amounts of perceptual information that are used to draw large conclusions about individuals.
E.
None of the above define "interpretation."
【单选题】"Interpretation" can be defined as
A.
the process by which the receiver reacts to the sender's message.
B.
the process of screening, selecting, and interpreting stimuli so that they have meaning to the indiv
C.
the facts, ideas, feelings, reactions, or thoughts that exist within individuals and act as a set of
D.
small amounts of perceptual information that are used to draw large conclusions about individuals.
E.
None of the above define "interpretation."
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