【判断题】均压电容是利用电容器两端电压不能突变的特点使整流元件上的电压增长速度加快,实现均压作用。
【多选题】Listen to the dialogue and choose the information you hear.
A.
Susan went to a special party on Sunday.
B.
The whole neighbourhood had a dinner together.
C.
Susan doesn’t like this kind of dinner party.
D.
This kind of party can enhance neighbourhood relationship.
【简答题】______ what our future technology will be able to ______and no telling what we can do with our own bodies. In biology right now, we are ______ being able to control our own genetics, what the genes in...
【单选题】以下哪项是急性期心肌梗死的心电图正确描述
A.
出现高大的T波, ST段斜型抬高,但未出现Q波
B.
ST段呈弓背向上抬高形成单项曲线,继而逐渐下降;T波由直立转为导置,并逐渐加深, 出现异常Q或QS
C.
抬高的ST段恢复至基线,T波逐渐变浅,Q波持续存在
D.
ST段和T波接近正常或T波持续倒置、低平,趋于恒定不变,残留下坏死Q波
【简答题】Choose the proper sentences to complete the dialogue.(选择适当的句子完成对话。) 1. If I study harder, _________ 2. If she doesn't do her homework quickly, _________ 3. If he can't catch the bus, _________ 4. If h...
【多选题】下列属于肿瘤防治中强调 “ 三早 ” 的是 ( ) 。
【单选题】患者男,32岁。因出差劳累,发作性头晕、胸闷半月余,突发晕厥1小时,以“晕厥原因待查、梗阻型肥厚性心肌病待查”急诊入院。有猝死家族史。入院当晚,患者情绪较为紧张,迟迟无法入睡,多次呼叫值班护士,诉“头晕、胸闷”,但每次床边检查生命体征,除脉搏稍快外,余均正常,其发生上述表现最主要的原因是