His friends discouraged him______investing in mat region.
A. for
B. on
C. from
D. up
查看答案
Coin collection started long time ago.
A. Right.
B. Wrong.
C. Doesn't say.
According to the passage, children are natural scientists, and to raise their interest, the most important thing for adults to do is______.
A. to let them see the world around
B. to share the children's curiosity
C. to explain difficult phrases about science
D. to supply the children with lab equipment
According to the passage, children can answer questions in a more logical, complete and creative way if adults______.
A. ask them to answer quickly
B. wait for one or two seconds after a question
C. tell them to answer the next day
D. wait at least for three seconds after a question
Shackleton was regarded as a hero because______.
A. he crossed Antarctica on foot
B. he took many photos of Antarctica
C. he showed great courage in the face of danger
D. he had many adventures
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