有血管硬化或心脑疾患的糖尿病病人进行椎管内阻滞麻醉时,麻醉药用量应()
A.增加
B.减少
C.增加1/3
D.不变
E.增加或减少均可
参考答案:B
解析:病人耐受性下降
连词成句。
1. go shopping, who, today, wants, to
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2. is, time. it, what
3. for, Jenny, buys, chopsticks, her, mother
已知x=6.61,y=-3.39,求(x-y)(x2+3xy+y2)-5xy(x-y)的值。