【简答题】1mol·L -1 HA溶液pH=4,则0.1mol·L -1 NaA溶液的pH为______。
【判断题】地球的节律是由李光地及其科研集体提出的。()
【单选题】According to the author, which of the following statements is true?
A.
Neither the presentation of the news nor its interpretation is objective.
B.
The presentation of the news is more objective than its interpretation.
C.
The presentation of the news and its interpretation are objective.
D.
The presentation of the news is more subjective than its interpretation.
【单选题】占四胃容积的7- 8%,左右稍扁的椭圆形, 位于右肋部胃( )
【多选题】关于写景式插花叙述正确的是( )
D.
主要表现若干种植物的自然群落景观,或特定区域的自然风光。
【判断题】净利润是反映企业经营成果的最综合的指标,因此,只要净利润达到了预期目标,其他利润也一定能达到预期目标。( )