“金银铜铁锡”俗称五金。在这五种金属中，金属活动性最强的是

【名词&注释】

高血压(hypertension)、形容词(adjective)、金属活动性

[单选题]“金银铜铁锡”俗称五金。在这五种金属中，金属活动性最强的是

A. 铁
B. 金
C. 银
D. 铜

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学习资料：

[单选题]Whose bike is this?--- It ______ belong to Adam. Look! His bag is on it.

A. must
B. may
C. will
D. can

[单选题]17．

A. for
B. on
C. in
D. at

[单选题]Can you speak English _______ ?—Yes，l can．

A. good
B. well
C. nice
D. easy

[单选题]AIf you go to a fast food restaurant．you will probably see a lot of teenagers． Today，many teenagers are overweight，and some of．this is because of their bad eating habits．， Most teenagers love food with a lot of fat，oil，salt，and sugar． People often call this kind of food "junk food"．

A. bad eating habits go beyond fast food． We find many teenagers eat unhealthily． Some don't have breakfast before they go to school． During the day，some don't have a proper meal for lunch． In a recent survey at one school，scientists found that over two-thirds of the students didn't follow a healthy diet． They didn't like vegetables，and many of them didn't like to eat fruits． They preferred to eat food with a lot of salt，sugar，or fat．
B. Some doctors give the ．following ad-vice :
D. Salt can cause high blood pressure(高血压) in the future．
G. Milk will help their bones grow．
H. This is good for their body and mind．
I. "Junk food" contains(包含) a lot of ________．
J. milk and sugar
K. fruits and sugar
L. vegetables and salt
M. fat，oil，salt and sugar

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