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【单选题】
“双向选择,竞争上岗”已成为就业的现实、在市场就业中,不仅要有学历证书,而且还要有多个职业资格证书,有这些证书,求职者在选择职业有优势、这说明( )。A.
只要有职业资格证书就能找到好工作。
B.
职业资格证书是提高就业竞争力的重要条件。
C.
职业资格证书越多说明专业性越强。
D.
职业资格证书是劳动者的能力证明。
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【简答题】真空中一个半径为R的均匀带电球面带有电荷Q(Q>0)．今在球面上挖去非常小块的面积△S(连同电荷)，如图14-14所示，假设不影响其他处原来的电荷分布，则挖去△S后球心处电场强度的大小为__________，其方向为__________．
【简答题】真空中有一个半径为R,带电量为Q的空心球壳,球内充满介电常数为ε的各向同性的均匀电介质,球心处有一个电量为q的点电荷,求:(1)电场在空间的分布;(2)球壳内距球心O半径为r的P点的电势。
【简答题】Ways to Burn More Calories Run through water Running in water is one of the toughest activities you can perform because the wet stuff is about 12 to 15 times as resistant (具有阻力的) as air. Try your hard...
【单选题】Betty is careful as I, but I'm than you. [ ]
A.
as; much careful
B.
so; more careful
C.
as; much more careful
D.
so; very careful
【单选题】The Internet appeals to shoppers in that
A.
it offers many more attractive products.
B.
you can pay for the products with a credit card.
C.
it is convenient to buy and compare products.
D.
all of the above.
【单选题】A small car is big enough for a family of three ______ you need more space for baggage.
A.
once
B.
in case
C.
if
D.
unless
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