A：three thousand of
B：thousands of
C：thousand of
D：three thousands
请你根据你所学的化学知识，谈谈硬水对人类生产或生活可能产生的不良影响的例子．
1840年____ 发动侵华战争，史称（____ ）。
下列关于金属元素特征的叙述，正确的是（ ）
B
Indoor Water Park
Opening time
◆9: 00a.m.--6:00p.m. from Monday to Friday
◆8: 00a.m.- 10: 00p.m. from Saturday to Sunday
Ticket price
◆Adults: 150 yuan/person: 130 yuan/member
◆Children: above 1.2 meters, 75 yuan/person; 60 yuan/member under 1.2 meters. free
Should not take
food, pets, knives, rings
Things to remember
◆Children under 1. 4 meters and old people above 60 should stay with other adults
◆You should follow the rules in the water park.
◆If you have some health problems and aren't suitable for water activities, you'd better not come in
