Through life learning, children______．
A. will grow without the assistance from parents
B. will learn to communicate with the real world
C. will be driven to learn necessary life knowledge
D. will be isolated from the negative side of society
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According to the author, life learning______．
A. could prevent one from running risks
B. could be a road full of trials and errors
C. makes a kid independent of his parents
D. teaches a kid how to avoid being scorned
It is implied in the text it is hard to______．
A. carry life learning through
B. tell the nature of life learning
C. learn without going to school
D. find a specially trained teacher
What is the use of a seismograph？
A. It is used to record the strength of an earthquake or seaquake.
B. It is used to record the direction of an earthquake or seaquake.
C. It is used to reocrd the length of time of an earthquake or seaquake.
D. It is used to predict when a tidal wave will hit land.
which of the four statements in true of tidal wave？
A. It is the regular rise and fall of ocean waters.
B. It comes definite times of each day.
C. It comes rushing in suddenly and unexpectedly.
D. Scientists can hold back a tidal wave.
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