A.Give the secretary Janet"s new address and phone number.B.Ask Janet a question
A. Give the secretary Janet"s new address and phone number.
B. Ask Janet a question about his health.
C. Get information about Janet from the secretary.
D. Visit Janet at her new school.
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男性,37岁。低热,全身不适,乏力3年,近半年四肢关节肿痛、肌肉酸痛,登3 楼困难,同时在上眼睑、出现红色皮疹,咳嗽,吞咽硬食困难。体检:眼睑周围水肿, 眼睑、鼻梁、面颊、远端指间关节及甲周皮 肤有暗紫色红斑,根据上述检查,给予肾上腺皮质激素治疗,疗程l.5年。患者上述症状无改善,肌无力更加严重,行走困难,但肌酶谱、肌电图均明显好转,此时可能原因与最佳处理是
A. 诊断错误,停用激素治疗
B. 诊断正确,有激素引起肌病可能,激素 减量,继续观察
C. 诊断正确,继续原剂量治疗并加用VCR
D. 诊断正确,激素剂量不够,加大剂量
E. 诊断正确,激素疗程不够,原剂量继续 治疗
在13C NMR波谱中在125~140ppm产生六个信号的化合物是( )。
A. 1,2,3-三氯苯 B.1,2,4-三氯苯 C.1,3,5-三氯苯
A.He doesn"t know what tools to bring.B.The donkeys will carry the woman"s person
A. He doesn"t know what tools to bring.
B. The donkeys will carry the woman"s personal items.
C. He doesn"t mind helping the woman.
D. The woman won"t have to carry tools.
人体眼液的渗透压在310K时约为770kPa。市售的某种眼药水由下列四种物质配制而成:5.00g ZnSO4,17.00g H3BO3(硼酸),0.20g盐酸小檗碱和0.008g盐酸普鲁卡因,它们溶于水并稀释到1000 mL。若设ZnSO4完全解离,硼酸是一元弱酸几乎不解离,小檗碱和普鲁卡因含量少忽略不计时,计算310K时该眼药水的渗透压是多少?比较考虑和不考虑活度系数的两种计算结果。