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【单选题】
以下关于焊缝符号的说法,错误的是()A.
表示焊缝横截面形状特征的符号是焊缝辅助符号
B.
表示焊缝横截面形状特征的符号是焊缝基本符号
C.
表示焊缝表面形状特征的符号是焊缝辅助符号
D.
焊缝补充符号是为了补充说明焊缝的某些特征而采用的符号
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皮皮学刷刷变学霸
举一反三
【单选题】胸外心脏按压错误的操作是( )
A.
按压时肘关节伸直
B.
手掌跟部按压在胸骨中、下1/3交界处
C.
用腕部的力量垂直下压
D.
放松时手掌跟部不可理开胸壁
E.
按压至深部要稍作停留
【简答题】胸外心脏按压常见的错误有哪些?
【单选题】What is Dickiason's particular form. of self-publication?
A.
She ran her own publishing house.
B.
She wrote her poems in her letters.
C.
She wrote to newspapers regularly.
D.
She recorded her poems in her diary.
【单选题】What is Dickinson's particular form. of self-publication?
A.
She ran her own publishing house.
B.
She wrote her poems in her letters.
C.
She wrote to newspapers regularly.
D.
She recorded her poems in her diary.
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