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【单选题】
酶免疫组织化学检测技术中敏感性最高的是A.
直接法
B.
间接法
C.
酶桥法
D.
ABC法
E.
PAP法
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反馈参考答案：
举一反三
【多选题】关于偿债基金,下列说法正确的是( )。
A.
为使年金终值达到既定金额的年金数额
B.
已知终值F，求年金A
C.
其计算公式为：A=F×i/(（1+i）^n-1)
D.
i/(（1+i）^n-1)称为“偿债基金系数”
【单选题】关于乱挡原因,下列说法错误的是:
A.
互锁装置失效:如拨叉轴、互锁销或互锁钢球磨损过甚
B.
变速杆下端弧形工作面磨损过大或拨叉轴上拨块的凹槽磨损过大
C.
变速杆球头定位销折断或球孔、球头磨损过于松旷
D.
自锁装置的钢球或凹槽磨损严重,自锁弹簧疲劳过软或折断
【单选题】From the last paragraph, we can conclude that
A.
managers learned management skills from the family playroom.
B.
spouses learned negotiation skills from their siblings.
C.
studies on siblings are under the way.
D.
studies on siblings need thorough investigation.
【简答题】It can be learned from Paragraph 1 that [A] Science intends to simplify their peer-review process. [B] journals are strengthening their statistical checks. [C] few journals are blamed for mistakes in ...
【单选题】It can be learned from the passage that ______.
A.
air journeys are quite often far from comfortable
B.
air travelers usually enjoy luxury during flight
C.
air travelers usually enjoy upgraded conditions
D.
Airlines always provide good-in-flight entertainment
【单选题】关于乱挡原因,下列说法错误的是( )
A.
互锁装置失效；如拔叉轴，互锁销或互锁钢球磨损过大。
B.
变速杆下端弧形工作面磨损过大或拔叉轴上拔块的凹槽磨损过大。
C.
变速杆球头定位销折断或球孔、球头磨损过于松旷
D.
自锁装置的钢球或凹槽磨损严重，自锁弹簧疲劳过软或折断
【简答题】It can be learned from the story that the family had ______ children.
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