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【简答题】
体内脱氧核苷酸是由()直接还原而生成,催化此反应的酶是核糖核苷酸还原酶酶。
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举一反三
【简答题】Translate the following passage into Chinese. Data is a collection of unorganized facts, which can include words, numbers, images, and sounds. Computers manipulate and process data to create informati...
【单选题】案例摘要:患者,女性,56岁。患有风湿性关节炎及慢性心脏病,该患者长期服用地高辛、氢氯噻嗪及钾剂以维持其心脏功能,由于病情需要,现需服用普鲁卡因胺。根据普鲁卡因胺的用药原则,对于这名患者,下列叙述最正确的是()
A.
普鲁卡因胺可与地高辛相互作用,加用普鲁卡因胺前、后都应该监测地高辛的血药浓度
B.
存在交叉过敏反应:对普鲁卡因及其他有关药物过敏者,可能对普鲁卡因胺也过敏
C.
如果患者患有哮喘,则不能服用普鲁卡因胺,因为普鲁卡因胺有β受体阻断作用
D.
普鲁卡因胺的持续作用时间可达20~30小时,可单独用于治疗房性心动过速
E.
普鲁卡因胺口服无效
【简答题】在△ABC中,tanA=2tanB,sinC= 3 5 ,则sin(A-B)=______.
【简答题】Computers are very efficient at (manipulate) information.
【简答题】在△ABC中,tanA,tanB是关于x的方程x 2 -p(x-1)+1=0的两个实根,则∠C=______.
【简答题】manipulate contradict paradox perspective defy suspend tackle retain derive explicit 7 Many childern are addicted to computers, so they often _______ their parents and play ...
【简答题】She leaned forward, (hunch) over the desk. 2. Switzerland is known for accuracy, which (bolster) its watch and banking industries. 3. She combed her hair, gently (tease) out the knots. 4. So ev...
【简答题】在△ABC中,若tanA:tanB:tanC=1:2:3,则A=______.
【单选题】Computers manipulate data in many ways, and this manipulation is called ____.
A.
upgrading
B.
processing
C.
batching
D.
utilizing
【简答题】在△ABC中, tanA= 1 4 , tanB= 3 5 . (Ⅰ)求角C的大小; (Ⅱ)若△ABC最大边的边长为 17 ,求最小边的边长.
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