每条履带独立传动,钻机的两条履带可逆向转动,其最大优势在于()。
A.钻机的行走可操作性变大
B.钻机的承载力变大
C.行走速度增大
D.牵引力变大
参考答案:A
根据句意及所给中文提示或英文解释,写出句中所缺单词,每空限填一个单词。
1. People like travelling in _________ (春天) because it is neither too hot nor too cold.
2. -What’s your father’s ________ (职业)?-He is a doctor.
3. The 30th Olympic Games will be held in London, the ________ (首都) of England.
4. Lucy is polite and _______ (乐于助人的). We all like her.
5. Our maths teacher asked you to go to his office ________ (立即). He is waiting for you.
6. Colours can change our moods and some may make us feel _________ (in need of sleep).
7. Hurry up, or we can’t ________ (arrive at) the railway station on time.
社会工作者接待了一位女士,她家刚刚遭受了一场火灾,损失惨重,面对困境,夫妻俩意见不统一,发生激烈冲突。与此同时,他们又发现儿子学习成绩急剧下降。在这一案例中,社会工作者首先要做的是()。
A.协助申请临时救助
B.夫妻关系辅导
C.家庭能力建设
D.家庭生活教育