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【多选题】
关于儿童口腔局部麻醉技术，以下说法错误的是：A.
推荐在儿童口腔中应用的慢注射是指注射 1mL 局麻药物的时间要大于 30 秒。
B.
注射时避免将针头在粘膜内埋没至接口。
C.
在上颌颊侧局部浸润时，可以让患儿紧咬牙以分散注意力，缓解疼痛。
D.
8 岁儿童行下牙槽神经阻滞麻醉时，注射器位于下颌平面上 10mm 。
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举一反三
【单选题】what will be the possible result of adding extra electrical appliances to a circuit?
A.
The insulation will be improved
B.
The wires will become insulated
C.
The circuit is likely to be changed
D.
the fire is likely to occur
【单选题】What will be the possible result of adding extra electrical appliances to a circuit?
A.
The insulation will be improved
B.
The wires will become insulated.
C.
The circuit is likely to be changed
D.
the fire is likely to occur
【简答题】What is the definition of a circuit?
【简答题】what is an active circuit?
【单选题】What will be the possible result of adding extra electrical appliances to a circuit?
A.
The wires will become insulated.
B.
The fire is likely to occur
C.
The circuit is likely to be changed
D.
The insulation will be improved
【简答题】what is a passive circuit?
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