某一个DNA分子中含有30%的G+C,则由它转录成的RNA中G+C应为[ ]
A.60%
B.30%
C.20%
D.15%
答案:B
某患者,胃脘胀闷,痛连两胁,攻撑走窜,遇烦恼则痛作或痛甚,喜太息,胸闷嗳气,大便不爽,舌苔多薄白,脉弦。
其治法是()
A.疏肝解郁,理气止痛
B.疏肝泄热,和胃止痛
C.化瘀通络,和胃止痛
D.清化湿热,理气和胃
E.消食导滞,和胃止痛
— Did you ask Sophia for help?
— I ___ need to . I managed perfectly well on my own.[ ]
A. wouldn't
B. don't
C. didn't
D. won't