为了探究金属腐蚀的条件和速率,某课外小组学生用不同金属丝将三根大小相同的铁钉分别固定在图示的三个装置内,并将这些装置在相同的环境中放置相同的一段时间,下列对实验结束时现象的描述不正确的是
My friend showed me round the town, ______ was very kind of him.
They use computers to keep the traffic _______ smoothly.
If you leave the club, you will not be_____back in .
What I need is_____ book that contains ______ABC of oil painting.
Jenny nearly missed the flight______ doing too much shopping.