A. injuriesB. symptomsC. coldsD. diseases
A. injuries
B. symptoms
C. colds
D. diseases
Which of the following can be found in the archive gallery？
A. History books．
B. The Wright brothers’s culpture．
C. First practical airplanes built in the late l 9th century．
D. Leonardo da Vinci’s bird-like flying machines
A. damageB. predictC. destroyD. affect
A. damage
B. predict
C. destroy
D. affect
Nanoconveyors could be used to____________．
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