问题
单项选择题
下列对治疗指数的叙述不正确的是（）
A.值越大则表示药物越安全
B.值越小越安全
C.英文缩写为TI，也可用LD50/ED50表示
D.可用LD5/ED95表示也可，但不如用LD50/ED50合理
E.可用动物实验获得
答案
参考答案：B
解析：治疗指数（TI）用LD50/ED50表示。可用TI来估计药物的安全性，通常此数值越大表示药物越安全。
搜题请搜索小程序“爱下问搜题”
下列对治疗指数的叙述不正确的是（）
A.值越大则表示药物越安全
B.值越小越安全
C.英文缩写为TI，也可用LD50/ED50表示
D.可用LD5/ED95表示也可，但不如用LD50/ED50合理
E.可用动物实验获得
参考答案：B
解析：治疗指数（TI）用LD50/ED50表示。可用TI来估计药物的安全性，通常此数值越大表示药物越安全。
第一节：根据句子的意思，写出正确的单词，并注意词的正确形式。（共10小题；10分）。 81. Another thing that ＿＿＿困惑 people is that Newspapers and magazine never criticize any influential person. 82. I patted her _______(温柔地) on the shoulder. 83. He is no longer in good health, and his ability to work is l＿＿＿. 84. This restaurant was not giving its ______(顾客) energy-giving food. 85. Without the atmosphere p _______ our earth from the sun, it would be too hot for any living things to live on. 86. It was all my fault that my son had made such a silly but serious m _______. 87. To succeed, we must ___________(结合) talent with working hard. 88. He has been working for a long time, but he is still full of __________.（energetic） 89. Once the balance of nature is b ______, natural disasters are likely to strike in ways beyond 90. In order to win back the customers, the owner of the restaurant decided to sell his food at a d ____. |