世界上最先进入一天的是哪个地方?
参考答案:世界上最先进入一天的是汤加。
What a terrible experience! ____,you came backsafe and sound. [ ]
A. Somehow
B. Anyhow
C. Somewhat
D. Anywhere
正常情况下,人精子的染色体数是( )
A.23条
B.23对
C.46对
D.1条