题目

如图所示是ABLT-lA轴承寿命试验机，该试验机主要用于滚动轴承疲劳寿命快速试验。试验过程为：自动稳压加载，试验轴承外圈温度，试验时间（精确到 0.1小时）自动累计显示，直到轴承疲劳剥落自动停机，用计算机控制并将试验结果自动打印、分析。该试验机采用的试验方法为（ ） A . 虚拟试验法 B . 模拟试验法 C . 强化试验法 D . 优选试验法词汇检测。（10分）1.I like_______（冬天）best because I can go skating with my friends.2.Mary_______（拒绝）to do the work, so I had to ask John to do it instead.3.In class, we should answer the teacher's questions_______（清楚地）．4.We must think more of others, and we must not think only of_______（我们自己）．5.To keep fit, we should eat_______（少）food and do more exercises.6.Every morning many people will gather in the Tian anmen Square to watch the raising of our_______（国家的）flag.7.There are several ways to solve this problem. Let's have a_______（讨论）now.8.- Look! The boy is running so fast!- It's hard to _______ that his right leg was once broken9.The traffic is so busy. You should be _______ when you go across the road.10.One day people will _______ to the moon for vacation.