【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】MCS51单片机片外RAM最大地址为( )
【单选题】滤油器在 达到其规定限值之前可以不必清洗或更换滤芯。
【单选题】It is time to ______ fields in which they are just as capable as men.
B.
stop to keep women out
D.
stop keeping women out Of
【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:根_________条,胚乳________条,胚________条,精子________条。
【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。
【多选题】滤油器在某些技术指标达到其规定限值之前可以不必清洗或更换滤芯,下列说法错误的是( )。
【简答题】MCS51单片机片外地址空间大小为( )kB.