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【单选题】
如果采用定时器T0工作于方式1,晶振频率为12MHz,一次定时的最长时间为( )。A.
65536ms
B.
65536us
C.
1s
D.
10000us
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举一反三
【单选题】令患儿仰卧位,伸展两下肢时,当刺激一侧足底,该侧迅速发生髋膝屈曲、踝关节背屈或足趾展开,为
A.
伸肌收缩反射
B.
阳性非对称性紧张性颈反射
C.
屈肌收缩反射阳性反应
D.
心理作用
E.
联合反应
【单选题】In what way is the village shoemaker a 'formidable figure'?
A.
He seems to pay little attention to public opinion.
B.
He refuses to mend cheap, mass-produced shoes.
C.
He has a very rough temper.
D.
He has very high standards of workmanship.
【单选题】In what way is the village shoemaker a “formidable figure”?
A.
He seems to pay little attention to public opinion.
B.
He refuses to mend cheap, mass-produced shoes.
C.
He is bad-tempered as well as an excellent craftsman.
D.
He has very high standards of workmanship.
【简答题】在国计民生中广泛应用的三大合成高分子材料包括 _______ 、 _______ 、 _____ 。
【单选题】令患儿仰卧位,伸展两下肢时,当刺激一侧足底,该侧迅速发生髋膝屈曲、踝关节背屈或足趾展开,为
A.
伸肌收缩反射阳性
B.
非对称性紧张性颈反射阳性
C.
屈肌收缩反射阳性
D.
心理作用
E.
联合反应阳性
【单选题】Much of the pollution could be controlled if only______.
A.
people would pay more attention to the problem
B.
governments would take effective measures
C.
all sides concerned would make more efforts
D.
farmers would use less artificial fertilizers
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