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【单选题】
薄层扫描定量中,内标法的主要优点在于
A.
消除展开剂挥发的影响
B.
消除点样量不准的影响
C.
消除薄层板厚薄不均匀的影响
D.
其线性关系比外标法好
E.
以上都不对
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】男，75岁。进行性排尿困难6个月，直肠指诊发现前列腺右侧有2cm×2cm硬结，一周后行PSA检查为120ng/ml，核素全身骨扫描示骨盆及腰椎系统放射性浓聚区，诊断为前列腺癌骨转移，此患现最适宜的治疗是（）
A.
根治性前列腺切除+放射治疗
B.
根治性前列腺切除+化疗
C.
根治性前列腺切除+盆腔淋巴结清扫
D.
前列腺切除+综合治疗
E.
双睾丸切除+抗雄性激素药物+放射治疗
【单选题】Part ADirections: Read the following four texts．Answer the questions below each text by choosing A, B, C or D．(40 points)The long year of food shortage in this country have suddenly given way to appar...
A.
The abundant food supply is not expected to last
B.
Britain is importing less food
C.
Despite the abundance, food prices keep rising
D.
Britain will cut back on its production of food
【单选题】眼眶CT扫描采用()。
A.
听眦线25°横轴位和冠状位
B.
听眦线30°横轴位和冠状位
C.
听眦线横轴位和冠状位
D.
听眦线横轴位和矢状位
E.
听眦线20°横轴位和冠状位
【单选题】The long year of food shortage in this country have suddenly given way to apparent abundance. Stores and shops are choked with food. Rationing (定量供应 ) is virtually suspended, and overseas suppliers ha...
A.
the fall in world food prices would benefit British food producers
B.
an expansion of food production was at hand
C.
British food producers would receive more government financial support
D.
it looks depressing despite government guarantees