【单选题】Whenever possible, each reason in an argument should be supported by some kind of evidence, and what can be considered as evidence?
C.
quotations from expert
【简答题】外毒素免疫原性强,其抗体称为【填空】。A. 抗毒素
【单选题】What is one possible reason that antihistamine recommendations increased after 2008?
A.
Doctors believe antihistamines are more effective at treating colds.
B.
Doctors believe that allergy rates have increased among children.
C.
Parents expect doctors to give some kind of prescription to sick children.
D.
All of the above options are correct.
【单选题】关于工作满意度与生活满意度关系的说法,正确的是( )。
【判断题】细菌外毒素经甲醛处理后,仍可保留其免疫原性而成为可作抗原的类毒素。( )
【单选题】According to the author, what is one possible reason for the disappearances?
A.
The sailors and airmen were taken away by people from space for scientific research.
B.
Some sailors and airmen were inexperienced and were responsible for the accidents.
C.
The sailors and airmen could not stand the extreme weather conditions and they died natural death.
D.
Some navigational instruments ran out of order and therefore caused the ships’ sinking and the planes’ crashing.
【判断题】一组4位二进制数组成的BCD码可以表示十六以内任何一个十进制数。