【判断题】一般情况下,婴幼儿的平均心率在100~110/min时,表明其活动量比较合适。
【单选题】— How was the weather yesterday? — It was _____. [ ]
【单选题】美国的()和战略扩张成为国际局势动荡的根源
【判断题】一般情况下,婴幼儿的平均心率在100~110次/min时,表明其活动量比较合适。
【单选题】– How cold it is! I wonder how grass survive under such heavy snow. --Don’t worry.There is a lot
A.
15.– How cold it is! I wonder how grass survive under such heavy snow. --Don’t worry.There is a lot of air in loose snow which _______. A.keeps out the cold