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【单选题】
多普勒能量图的主要特点有A.
可显示平均速度极低的灌注区
B.
不受现象的影响
C.
显示的信号不受探测角度的影响
D.
能显示低流量 、 低速度的血流
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【简答题】Directions: For each blank in the following passage there are four words of phrases marked with A, B, C and D. Fill in each blank with a word that best fits the context. Dear Mom and Dad, I enjoy work...
【简答题】SECTION B Directions ； For each blank in the following passage there are four words of phrases marked with A, B, C and D. Fill in each blank with a word that best fits the context. This is a true stor...
【多选题】Complete the following sentence accurately, explaining your reason for accepting or rejecting each of the four phrases (more than one can be correct). The role of calcium in muscle contraction is:
A.
T o detach myosin heads from actin.
B.
T o spread the action potential from the plasma membrane to the contractile machinery.
C.
T o bind to troponin, cause it to move tropomyosin, and thereby expose actin filaments to myosin heads.
D.
T o maintain the structure of the myosin filament. heads.
【单选题】Which of the following four character phrases does NOT contain the four tones?
A.
光明磊落
B.
白驹过隙
C.
胸怀广阔
D.
心明眼亮
【判断题】The four phrases of the culture shock are Honeymoon Negotiation Adjustment Adaptation.
A.
正确
B.
错误
【单选题】Choose one from the four words of phrases which cannot explain the underlined part of the senence. Another concern is that the Internet and social networking sites like Facebook make it possible to in...
A.
in public
B.
secretly
C.
in a private way
D.
hiding behind the curtain
【单选题】Which translation of four-character phrases adopts the method of literal translation?( )
A.
家家面水，户户枕河：every house is located beside the river
B.
水光浮翠，倒映林岚：the trees reflect their shadows on the pure and clear water
C.
灯火阑珊：at the midnight
D.
明明暗暗，晃晃悠悠：The shadows wave with the wind on the ground
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