【单选题】( )方法允许一个且仅一个线程继续执行后面的语句。
【单选题】哪家邮轮公司停靠的地点与时间都由宾客来决定?( )
【简答题】She said, "Mr.Liu has arrived in Beijing to attend a meeting." She said that Mr.Liu __________ in Beijing to attend a meeting.
【单选题】–It’s said that Wang Meng spent almost 10 hours training every day. --That’s true. She is really hard-working. ______, she won 3 golden medals in the 21st Winter Olympics.