关于牵张成骨患者年龄的选择学者们的意见基本一致,认为较为适当的年龄是:()
A.3岁
B.4岁
C.5岁
D.6岁
E.7岁
参考答案:B
Richard turned off the computer after he had finished __________ the email.[ ]
A. write
B. to write
C. writing
D. wrote
若北京时间为上午10时,纽约则为上一天()。
A.17时
B.19时
C.21时
D.23时