A:①②
B:①③
C:②④
D:①④
完成句子。根据括号内汉语提示,完成句子。(1)It's too dangerous to (游泳)____ alone.(2)Jack is the (高)____ of the five boys.(3)What would you do if your brother borrowed your bike without ____ (允许).(4)Sandy enjoys reading books and she has been to many (图书馆)____ .(5)Don't forget to check your test paper (仔细)____ before the exam is over.(6)If you stand very close to the Europeans you are talking with,some might feel____ (不自然,不舒服).
一个电梯上标明荷载质量为1.2t.
(1)你的质量约为多少kg?
(2)假如人的平均质量按60kg计算,该电梯约能乘坐多少人?
读日本、俄罗斯图,回答下题。