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【單選題】
一般來說，安全帽在出廠時需進行堅固程度測試。根據安全帽國家標準的要求，在進行安全帽堅固程度測試中，安全帽扣在了一個模擬人腦的頭模上，5公斤重的鋼錐將從距安全帽帽頂一米的高度進行自由落體運動，鋼錐不能刺穿帽體接觸到頭模。對安全帽進行的這種試驗運用了哪種技術試驗方法? ( )
A.
強化試驗
B.
信息試驗
C.
性能試驗
D.
虛擬試驗
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舉報參考答案：
舉一反三
【單選題】When a tourist asks the Japanese the way to a certain place, they usually ________.
A.
describe the place carefully
B.
show him a map of the place
C.
tell him the names of the streets
D.
refer to recognizable buildings and places
【單選題】What does “hands-on science”mean in the last paragraph?
A.
Science s designed by kids.
B.
Learning science by doing things.
C.
A show of kids’ science work.
D.
Reading science books.
【單選題】In the author’s view, shyness can be explained as _______.
A.
a not very normal mental condition
B.
a disease that can be easily cured
C.
something we pick up after birth
D.
a kind of emotional disability
【單選題】From the passage, we know that Johnny Carson _____.
A.
has dealt with shyness very successfully
B.
has done away with his shyness carefully
C.
is described as a hero in some legend books
D.
failed to become a good talk show host
【單選題】The passage tells us that Sally Fields was ________.
A.
proud all the time
B.
close to Jane Fonda
C.
impolite when young
D.
shy in her early years
相關題目：
【單選題】When a tourist asks the Japanese the way to a certain place, they usually ________.
A.
describe the place carefully
B.
show him a map of the place
C.
tell him the names of the streets
D.
refer to recognizable buildings and places
【單選題】What does “hands-on science”mean in the last paragraph?
A.
Science s designed by kids.
B.
Learning science by doing things.
C.
A show of kids’ science work.
D.
Reading science books.
【單選題】In the author’s view, shyness can be explained as _______.
A.
a not very normal mental condition
B.
a disease that can be easily cured
C.
something we pick up after birth
D.
a kind of emotional disability
【單選題】From the passage, we know that Johnny Carson _____.
A.
has dealt with shyness very successfully
B.
has done away with his shyness carefully
C.
is described as a hero in some legend books
D.
failed to become a good talk show host
【單選題】The passage tells us that Sally Fields was ________.
A.
proud all the time
B.
close to Jane Fonda
C.
impolite when young
D.
shy in her early years
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