The language of the Sumerians, __________, is unrelated to any known language.
A、which remains obscure origin
B、whose origin remains obscure
C、whose remains obscure origin
D、who is origin obscure remain
A、which remains obscure origin
B、whose origin remains obscure
C、whose remains obscure origin
D、who is origin obscure remain
A、both O2 and CO2 are transported in two forms, physical dissolution and chemical combination.
B、The process of ombination of hemoglobin and CO2 into carbaminohemoglobin is enzyme independent.
C、the major component of CO2 transported in the blood is HCO3-
D、the major component of gas transported in the blood is in the form of chemical combination.
E、the properties of chemical combination between O2 and Hb include rapid, reversible and enzyme dependent.
A、removed
B、taken off
C、get an abstract of
D、to get a piece of information from a book, document, computer file
A、Gender has a social and relational quality.
B、Sex is biological and permanent.
C、Gender are socially-constructed.
D、Gender varied over time and across cultures.
A、their hearing
B、they hearing
C、heard
D、hearing
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