问题
单项选择题 A1/A2型题
表示单位质量标记物的放射强度的指标是（）。
A.放射化学纯度
B.免疫活性
C.比放射性
D.交叉反应率
E.亲和常数
答案
参考答案：C
解析：比放射性也称放射性比度，是指单位质量标记物的放射强度。
搜题请搜索小程序“爱下问搜题”
表示单位质量标记物的放射强度的指标是（）。
A.放射化学纯度
B.免疫活性
C.比放射性
D.交叉反应率
E.亲和常数
参考答案：C
解析：比放射性也称放射性比度，是指单位质量标记物的放射强度。
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| 根据短文内容，填写表格。 Welcome to 2007 Summer Camp 2007 Summer Camp opens between 9:30 a.m. and 11:30 a.m. from July 20th to July 30th. All children aged 7-14 are welcome. Each child can take part in only one of the following activities and needs to pay ￥150 for it. 1. Sports (basketball, football, table tennis, etc.) 2. Interest Groups (painting, singing, dancing, piano, computer, etc.) 3. English World (songs, films, games, plays, etc.) Some American children are coming to the camp. If you really want to spend an interesting summer holiday, please join us for learning with fun. Act now! Book your seat as soon as possible either by phone or by e-mail. Pay before July 18th, then you can have a Mickey T-shirt as a member of the camp. Nanfang Children’s Palace No. 23 Dongshan Street, Binhai City[ Tel: 83212563 E-mail: dsbc2007@childrenpalace.net Information Card for 2007 Summer Camp | ||||||||||
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