【单选题】Positive nitrogen balance is seen in
C.
Intestinal malabsorption
【单选题】The gaseous oxides of nitrogen have positive enthalpy changes of formation.Which factor is likely to make the most significant contribution to these enthalpy changes?
A.
the high bond energy of the nitrogen molecule, N2
B.
the high electron affinity of nitrogen atoms
C.
the high electron affinity of oxygen atoms
D.
the similarity of the electronegativities of oxygen and nitrogen
【单选题】According to Confucius, _____ would be considered to be filial.
A.
to provide enough food to parents
B.
to let parents travel around the world
C.
to give parents a lot of money
D.
to provide parents with enough food and show respect to them as well
【多选题】下列对中药注射剂溶液的质量要求正确的是( )
D.
中药注射剂的pH值要求与血液的pH值相等或接近
【单选题】Cancer should be considered to be a biological problem rather than a medical one because ______.
A.
viruses are known to cause cancer in animals
B.
at present, human cancer is not believed to be contagious (传染的)
C.
there are many known causes for the transformation of a normal cell to a cancer cell
D.
results of experiments on plants and animals do not vary greatly from species tn species
【单选题】Which of the following state is positive nitrogen balance?
C.
people suffer from fever
D.
people suffer form long-time hunger
【判断题】根据四象限法则,第三象限是不重要不紧急的事。
【判断题】The nitrogen atom in the compound below has a positive charge: