下列离子方程式书写正确的是 A.钠和冷水反应 Na+2H2O=Na++2 OH-+H2↑ B.稀盐酸滴在铁片上2Fe+6H+=2Fe3++3H2↑ C.铜与稀硫酸反应:Cu+2H+=Cu2++H2↑ D.Na2CO3溶液中加少量盐酸:CO32-+H+=HCO3- 答案:D18、The most popular month for people to Visit this city
is June.Many families have vacations during this time.The weather is also very nice in June in this city.
There are few
people visiting this city in November.It’s quite cool in November.So the beach is not a popular place to go.The
water is not good for swimming or boating
Usually every year,about 600,000
people visit the city.The shops and businesses in this
city make much money from visitors every year.
( )1.This passage is talking
about______________.
A.cities with the most shops
B.how much visitors spend each month
C.where visitors stay
D.people visiting a city
( )2.Businesses in this city probably make the
most money during______________.
A.February,March
and
April
B.May,June and July
C.August,September
and
October
D.November,December and January
( )3.Where do you think this city is?
A.In a desert.
B.In the mountains.
C.Near the sea.
D.Outside a large city
( )4.About__________people visit this city in
June.
A.600,000
B.95,000
C.80,000
D.5,000
( )5.__________ people visit this city in June.
A.Less
B.Little
C.The most
D.More
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