比较笔迹特征的异同需注意（）。A.要客观全面，不要主观片面 B.要认真细致，不要粗

血清碱性磷酸酶及胆红素明显升高，而转氨酶仅轻度升高见于（）。

A.胰头癌

B.原发性胆汁性肝硬化

C.黄疸性肝炎

D.原发性肝癌

E.肝脓肿

腹股沟斜疝修补术后早期，最佳卧位是（）

A.去枕平卧位

B.仰卧位，膝部垫枕

C.俯卧位

D.半坐卧位

E.侧卧位

If you live in America in the 21^st century you'll probably have to listen to a lot of people tell you how busy they are. It's become the default response when you ask anyone how they are doing:"Busy!""Crazy busy!".It is,pretty obviously,a boast disguised as a complaint. And the common response is a kind of congratulation:"That's a good problem to have,"or"Better than the opposite."

Notice it isn't generally people pulling back-to-back shifts in the ICU or commuting by bus to three minimum-wage jobs who tell you how busy they are.What those people are is not busy but tired.Exhausted!Dead on their feet.It's almost always people whose busyness is purely self-imposed:work and obligations they've taken on voluntarily,classes and activities they've "encouraged" their kids to participate in.They're busy because of their own ambition or drive or anxiety,because they're addicted to busyness and dread that they might have to face in its absence.

Almost everyone I know is busy. They feel anxious and guilty when they aren't either working or doing something to promote their work.It's something they have chosen.Busyness serves as a kind of existential reassurance(令人安心的保证），a measure against emptiness,obviously your life cannot possibly be silly or tiny or meaningless if you are so busy,completely booked,in demand every hour of the day.

Idleness is not just a vacation.It is as necessary to the brain as vitamin D is to the body,and deprived of it we suffer a mental affliction as ugly as rickets.The space and quiet that idleness provides is a necessary condition for standing back from life and seeing it whole,for making unexpected connections and waiting for the wild summer lightning strikes of inspiration."Idle dreaming is often the essence of what we do,"wrote Thomas Pynchon.Archimedes' "Eureka"in the bath, Newton's apple :history is full of stories of inspirations that come in idle moments.

小题1:When many Americans say"Crazy busy", they mean______.

A．they are really tired of their present situation

B．they are really proud of their present life

C．they are complaining about their current work

D．their life are full of all kinds of problems小题2:The writer mentions Archimedes' "Eureka"and Newton's apple to show that________.

A．history is full of interesting stories

B．Archimedes and Newton were very busy, so they made great discoveries

C．people may get inspiration when they are idle

D．inspirations come from hard work小题3:The word "its" in the second paragraph refers to_______________________________.

A．ambition

B．anxiety

C．busyness

D．dread小题4:From the article,we can infer that ___________________________________.

A．generally people pulling back-to-back shifts in the ICU tell you they are busy

B．"Dead on their feet" means "being tired out"

C．all the kids are self-imposed due to the drive and motivation

D．The author seems to agree that idleness is better than busyness

货车通过30号单开道岔，侧向允许通过速度为（）。

A、90km/h

B、120km/h

C、140km/h

D、160km/h

兴奋在神经纤维上的传导是通过膜内外电位的变化产生（）

A.电荷

B.局部电场

C.局部电流

D.电势