Dreams can only be understood by the dreamer because ______.
A. they are always based on the dreamer"s deep feelings
B. they are expressed in a code only the dreamer can understand
C. they are always something related to the dreamer"s upbringing
D. they are always related to the dreamer"s personal culture
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The text is written to answer the question ______.
Are medical residents working too hard？
B. What can doctors do to avoid making mistakes？
C. What are the causes of most medical errors？
D. Are most medical errors preventable？
Dr. Nuckols response to the assertion that fatigue is the main cause of medical errors would be that ______.
A. it is a justified assertion
B. it is not a reasonable assessment
C. it is highly unlikely
D. it is not necessarily true
Implementing the IOM guidelines can be boon if______.
A. it does not reduce the residents" educational opportunities
B. it brings benefits to both the doctors and the patients
C. it has the effect of reducing the rate of medical errors
D. medical errors are made less expensive than they are now
用凯氏定氮法测定食品中的氮，待滴至瓶内溶液呈暗灰色时，若振摇后复现绿色，应再小心滴入()半滴，振摇1～2min不褪色，当视为到达滴定终点。
A. 标准盐酸溶液
B. 标准草酸溶液
C. 标准硝酸溶液
D. 标准硼酸淫
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