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【单选题】
MRI检查的术前准备错误的是:A.
腹部检查前不必禁食、禁水
B.
装有心脏起搏器的患者不能进行检查
C.
检查头颈部者检查前一日洗头
D.
不能配合者需采用镇静措施
E.
检查时保持体位不动
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举一反三
【简答题】一粒小麦体细胞里有 14 条染色体,下列组织细胞中的染色体数目应为: 胚乳 ______ 条,胚 ______ 条 , 花粉粒 ,根尖 ,极核 。
【单选题】It is time to ______ fields in which they are just as capable as men.
A.
keep women's
B.
stop to keep women out
C.
keep women away
D.
stop keeping women out Of
【单选题】According to the passage, special labor laws protecting women workers tend generally to have which of the following effects?
A.
They tend to modify the stereotypes employees often hold concerning women.
B.
They increase the advantage to employers of hiring men instead of women, making it less likely that women will be hired.
C.
They decrease the likelihood that employers will offer more protection to women workers than that which is absolutely required by law.
D.
They increase the tendency of employers to deny health insurance and disability plans to women workers.
【简答题】若用冒泡排序方法对序列 {10,14,26,29,41,52}从大到小排序,需进行 ( )次比较。
【简答题】MCS51单片机片外地址空间大小为( )kB.
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