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【单选题】
下列哪个是酸性氨基酸?A.
谷氨酸
B.
精氨酸
C.
酪氨酸
D.
丙氨酸
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皮皮学刷刷变学霸
举一反三
【单选题】Health clubs have undergone a major transformation that can be described in three words: mind, body, and spirit. Loud, fast, heart-thumping aerobics has been replaced by the hushed tones of yoga and t...
A.
exercise is less important now than it once was.
B.
health clubs are much less popular now than they were ten years ago.
C.
many health clubs will go out of business because of the decline in traditional exercise.
D.
people's desire to nurture all aspects of themselves has contributed to big changes for health clubs.
【单选题】下面关于浦肯野细胞起搏电流If的叙述,下列哪项是错误的:( )
A.
主要离子成分为Na+
B.
充分激活的膜电位为-100mV
C.
是一种超极化激活
D.
在动作电位的4期开放
E.
可被河豚毒TTX所阻断
【简答题】A 3.2.2 Listen to the dialogue and fill in the blanks with the missing information. Serenading Service was founded 1______ ago when the singer realized that British people were 2______. He thought the...
【单选题】中药制剂的杂质来源途径较多,不属于其杂质来源途径的是 C A.原料不纯 B. 包装不当 C. 服用错误 D. 产生虫蛀 E. 粉碎机器磨损
A.
原料不纯
B.
包装不当
C.
服用错误
D.
产生虫蛀
E.
粉碎机器磨碎
【单选题】关于母乳性黄疸的特点,下列哪项是错误的
A.
多于生后3~8天出现黄疸
B.
1~3周达高峰
C.
胆红素在停止哺乳2~3天后即下降
D.
食欲差,体重下降
E.
继续哺乳1~3个月胆红素亦下降
【单选题】母乳性黄疸的特点,下列哪项是错误的( )
A.
多于生后4~7天出现黄疸
B.
血清胆红素可>342μmol/L(200mg/L)但尚无核黄疸报告
C.
胆红素在停止哺乳24~72小时后即下降
D.
胃纳差,体重不增
E.
继续哺乳1~4月胆红素亦降至正常
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