挂载NFS服务器172.16.43.254的共享目录/opt/aaa到本地目录/aaa的命令是( )。 A: mount 172.16.43.254 /opt/aaa /aaa B: mount -t nfs 172.16.43.254/opt/aaa /aaa C: mount -t nfs 172.16.43.254:/opt/aaa /aaa D: mount -t nfs //172.16.43.254/opt/aaa /aaa
挂载NFS服务器172.16.43.254的共享目录/opt/aaa到本地目录/aaa的命令是( )。 A: mount 172.16.43.254 /opt/aaa /aaa B: mount -t nfs 172.16.43.254/opt/aaa /aaa C: mount -t nfs 172.16.43.254:/opt/aaa /aaa D: mount -t nfs //172.16.43.254/opt/aaa /aaa
基因型为Aa的植株自花授粉,有一粒种胚的基因型为Aa,其胚乳的基因型可能为 ()。 A: AAA或AAa B: AAa或Aaa C: Aaa或aaa D: AAA或Aaa
基因型为Aa的植株自花授粉,有一粒种胚的基因型为Aa,其胚乳的基因型可能为 ()。 A: AAA或AAa B: AAa或Aaa C: Aaa或aaa D: AAA或Aaa
In 1803 the United States purchased Louisiana from _____.
In 1803 the United States purchased Louisiana from _____.
721分光光度计适用于()
721分光光度计适用于()
721型分光光度计适用于:
721型分光光度计适用于:
In 1803, President Jefferson negotiated the purchase of Louisiana from Mexico.
In 1803, President Jefferson negotiated the purchase of Louisiana from Mexico.
执行lis1 = [x*3 for x in "ABC"]后,lis1结果是( )。 A: ["AAA", "AAA", "AAA"] B: ["BBB", "BBB", "BBB"] C: ["CCC", "CCC", "CCC"] D: ["AAA", "BBB", "CCC"]
执行lis1 = [x*3 for x in "ABC"]后,lis1结果是( )。 A: ["AAA", "AAA", "AAA"] B: ["BBB", "BBB", "BBB"] C: ["CCC", "CCC", "CCC"] D: ["AAA", "BBB", "CCC"]
国际网球联合会成立于 A: 1903 B: 1803 C: 1913 D: 1923
国际网球联合会成立于 A: 1903 B: 1803 C: 1913 D: 1923
霍尔效应哪一年发现的? A: 1881 B: 1879 C: 1803 D: 1831
霍尔效应哪一年发现的? A: 1881 B: 1879 C: 1803 D: 1831
721型分光光度计的检测器是(
721型分光光度计的检测器是(