反应前物质质量/g
反应后物质质量/g
Cu—Zn合金
稀硫酸
滤液质量
4.0
10
11.26
一辆汽车停在水平地面上,一个人用力水平推车,但车仍然静止,下列说法中正确的是( )
The Cartoon Museum
Come and see the best of British cartoon art. There is something for everyone—including popular cartoon characters and a great shop full of funny books and cards.
Price: £4.00
Opening times
Tuesday – Saturday 10:30-17:30
Sunday 12:00-18:00
Cox's Hotel
Tel: 01789 404600
E-mail:info@coxshotel.co.uk
Website: www.coxshotel.co.uk
Coffee shop: 9:00am-6:00pm
Tea room: 10:30am-5:30pm
Pub (酒吧): 12:00- midnight
(1:30am on Friday/Saturday
Stratford Butterfly(蝴蝶)Farm
Tel: 01789 299288 Price Opening Hours
E-mail: sales@butterflyfarm.co.uk £5.50 adult Summer 10am-6am
I always watch Running Man(《跑男》) on TV, and I ____ (real) like it.
计算6a2-5a+3与5a2+2a-1的差,结果正确的是()