荷兰:鹿特丹
A.南非:伯明翰
B.美国:芝加哥
C.日本:东京
D.中国:洛阳
参考答案:B
解析: 鹿特丹是荷兰的著名海港城市,芝加哥是美国著名的海港城市。故选B。
补全对话:根据句意及首字母提示,完成下列对话。(S = Son, D = Dad)
S: Hey, Dad?
D: Y 1 ?
S: Could I go to the m 2 with my classmates tonight?
D: S 3 . But don't s 4 out late.
S: Could I stay out u 5 eleven?
D: No, you c 6 . You h 7 a test tomorrow, remember?
S: Oh, yeah, well, could I u 8 your car?
D: Sorry, but I need it. I h 9 to have a meeting.
S: Could you give me a r 10 downtown? D: Sure
降低水的PH值会增加铁化合物和碳酸盐垢的溶解度,PH值对硫酸盐垢溶解度的影响很大。