【简答题】Although there are innumerable people logging on the internet, the proportion of online users reading blogs is only _______.
【判断题】有两个自由度的关节可允许在三个平面上的随意运动。
【单选题】They had to face up to innumerable______before they achieved their goal.
【判断题】肘关节是具有两个活动轴,有一个自由度的关节
【简答题】fabric. Advertisers and marketers are waking up early to the innumerable young people__________
【简答题】Exercise has innumerable health benefits, but losing weight may not be among them. A provocative new study shows that a substantial number of people who take up an exercise regimen wind up heavier aft...