皮皮学，免费搜题
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【多选题】
预防切口感染应采取哪些措施
A.
无严格无菌操作
B.
做好术前准备,纠正贫血和低蛋白血症
C.
切口使用有效的抗生素
D.
严密止血
E.
必要时正确的放置引流物
拍照语音搜题，微信中搜索"皮皮学"使用
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【简答题】句型转换。 1. I like riding bikes.（改为同义句） _____ _____ is riding bikes. 2. The stamp on the desk is Ben's.（对画线部分提问） _____ _____ is Ben's? 3. This is a flower stamp.（改为复数句子） _____ are _____ stamps. 4. They d...
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【单选题】My brother _______ while he _______ his bicy c le and h u rt himself
A.
f ell , was riding
B.
fell , is riding
C.
had fallen, rode
D.
had fallen. was riding
查看完整题目与答案
【单选题】下列各项中，应采用加权算术平均法计算的有(    )。
A.
已知各企业劳动生产率和各企业产值，求平均劳动生产率
B.
已知计划完成百分比和计划产值，求平均计划完成百分比
C.
已知计划完成百分比和实际产值，求平均计划完成百分比
D.
已知生产同产品各企业的产品单位成本和总成本，求平均单位成本
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【单选题】茎初生木质部的发育方式是（ ）。
A.
外始式
B.
内始式
C.
外起源
D.
内起源
查看完整题目与答案
【单选题】A man has genotype A1A2 G1G2 (one each of the A1 and A2 alleles of gene A, and one each of the G1 and G2 alleles of gene G) The A and G loci are on different chromosomes. What tes will a single me...
A.
2 of A1A2, 2 of G1G2
B.
1 of A1A1, 1 of A1G1, 1 of A2G1, 1 of G1G2
C.
1 of A1, 1 of A2, 1 of G1, 1 of G2
D.
1 of A1G1, 1 of A1G2, 1 of A2G1, 1 of A2G2
E.
None of the above
查看完整题目与答案
【单选题】A man has genotype A1A2 G1G2. (one each of the A1 and A2 alleles of gene A, one each of the G1 and G2 alleles of gene G ) The A and G loci are on difference chromosomes. What tes will many meioses...
A.
1/2  A1A2, 1/2  G1G2
B.
1/4  A1A1, 1/4 A1G1,  1/4 A2G1, 1/4 G1G2
C.
1/4 A1, 1/4 A2, 1/4 G1, 1/4 G2
D.
1/4 A1G1, 1/4 A1/G2, 1/4 A2G1, 1/4 A2G2
E.
None of the above
F.
More information is needed
查看完整题目与答案
【单选题】A man has genotype A1A1, G1G2. (He has two copies of the A1 allele of gene A, one copy each of the G1 and G2 alles of gene G). The A and G genes are on different chromosomes. What tes will a singl...
A.
2 of A1A1, 2 of G1G2
B.
1 of A1A1, 1 of A1G1, 1 of A1G2, 1 of G1G2
C.
2 of A1G1, 2 of A1G2
D.
2 of A1, 1 of G1A2, 1 of G2
E.
None of the above
F.
More information is needed
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【简答题】听力原文：(A) They're riding in cars. (B) They're riding bicycles. (C) They're riding horses. (D) They're riding behind a motorcycle.
查看完整题目与答案
【判断题】茎初生木质部的发育方式是外始式,初生韧皮部的发育方式是内始式
A.
正确
B.
错误
查看完整题目与答案
【简答题】轴的直径为30mm,材料为低碳钢,F=500N,M=100Nm受力如图,(1)确定轴的危险点,并画出危险点的应力状态;(2)求出轴危险点的主应力;(3)按第三强度理论计算其相当应力。
查看完整题目与答案
相关题目：
【简答题】句型转换。 1. I like riding bikes.（改为同义句） _____ _____ is riding bikes. 2. The stamp on the desk is Ben's.（对画线部分提问） _____ _____ is Ben's? 3. This is a flower stamp.（改为复数句子） _____ are _____ stamps. 4. They d...
查看完整题目与答案
【单选题】My brother _______ while he _______ his bicy c le and h u rt himself
A.
f ell , was riding
B.
fell , is riding
C.
had fallen, rode
D.
had fallen. was riding
查看完整题目与答案
【单选题】下列各项中，应采用加权算术平均法计算的有(    )。
A.
已知各企业劳动生产率和各企业产值，求平均劳动生产率
B.
已知计划完成百分比和计划产值，求平均计划完成百分比
C.
已知计划完成百分比和实际产值，求平均计划完成百分比
D.
已知生产同产品各企业的产品单位成本和总成本，求平均单位成本
查看完整题目与答案
【单选题】茎初生木质部的发育方式是（ ）。
A.
外始式
B.
内始式
C.
外起源
D.
内起源
查看完整题目与答案
【单选题】A man has genotype A1A2 G1G2 (one each of the A1 and A2 alleles of gene A, and one each of the G1 and G2 alleles of gene G) The A and G loci are on different chromosomes. What tes will a single me...
A.
2 of A1A2, 2 of G1G2
B.
1 of A1A1, 1 of A1G1, 1 of A2G1, 1 of G1G2
C.
1 of A1, 1 of A2, 1 of G1, 1 of G2
D.
1 of A1G1, 1 of A1G2, 1 of A2G1, 1 of A2G2
E.
None of the above
查看完整题目与答案
【单选题】A man has genotype A1A2 G1G2. (one each of the A1 and A2 alleles of gene A, one each of the G1 and G2 alleles of gene G ) The A and G loci are on difference chromosomes. What tes will many meioses...
A.
1/2  A1A2, 1/2  G1G2
B.
1/4  A1A1, 1/4 A1G1,  1/4 A2G1, 1/4 G1G2
C.
1/4 A1, 1/4 A2, 1/4 G1, 1/4 G2
D.
1/4 A1G1, 1/4 A1/G2, 1/4 A2G1, 1/4 A2G2
E.
None of the above
F.
More information is needed
查看完整题目与答案
【单选题】A man has genotype A1A1, G1G2. (He has two copies of the A1 allele of gene A, one copy each of the G1 and G2 alles of gene G). The A and G genes are on different chromosomes. What tes will a singl...
A.
2 of A1A1, 2 of G1G2
B.
1 of A1A1, 1 of A1G1, 1 of A1G2, 1 of G1G2
C.
2 of A1G1, 2 of A1G2
D.
2 of A1, 1 of G1A2, 1 of G2
E.
None of the above
F.
More information is needed
查看完整题目与答案
【简答题】听力原文：(A) They're riding in cars. (B) They're riding bicycles. (C) They're riding horses. (D) They're riding behind a motorcycle.
查看完整题目与答案
【判断题】茎初生木质部的发育方式是外始式,初生韧皮部的发育方式是内始式
A.
正确
B.
错误
查看完整题目与答案
【简答题】轴的直径为30mm,材料为低碳钢,F=500N,M=100Nm受力如图,(1)确定轴的危险点,并画出危险点的应力状态;(2)求出轴危险点的主应力;(3)按第三强度理论计算其相当应力。
查看完整题目与答案