下面那个是正常血压:()
A.舒张压≤85mmHg收缩压≤130mmHg
B.正常高值:舒张压85-89mmHg收缩压130-139mmHg
C.高血压:舒张压≥90mmHg收缩压≥140mmHg
A.舒张压≤85mmHg收缩压≤130mmHg
B.正常高值:舒张压85-89mmHg收缩压130-139mmHg
C.高血压:舒张压≥90mmHg收缩压≥140mmHg
A.收缩压下降,舒张压下降.脉搏细速
B.收缩压正常,舒张压下降,脉搏细速
C.收缩压正常,舒张压升高,脉搏徐缓
D.收缩压正常,舒张压升高,脉搏细速
E.收缩压增高,舒张压正常,脉搏细速
下面程序的输出是【 】。 main() { enum em{em1=3,em2=1,em3}; char*aa[]={"AA","BB","CC","DD"}; printf("%s%s%s\n",aa[em1],aa[em2],aa[em3]); }
下面程序的输出是【 】。 main() {enum em{em1=3,em2=l,em3}; char*aa[]={"AA","BB","CC","DD"}; printf("%s%s\n",aa[eml],aa[em2],aa[em3]); }
下面程序的输出是【 】 main() {enum em{eml=3,em2=1,em3}; char*aa[]={"AA,"BB","CC","DD"} printf("%s%s%\n",aa[em1],aa[em2],aa[em3]); }
下面程序的输出是【 】。 main() {enum em{em1=3,em2=1,em3}; char*aa[]={"AA"m,"BB","CC:,"DD"}; printf("%s%s%s\n,aa[em1],aa[em2],aa[em3]); }
下面程序的输出走【 】。 main() {enum em {em1=3,em2=1,em3}; char*aa[]={"AA","BB","CC","DD"}; printf("%s%s%s\n",aa[em1],aa[em2],aa[em3]); }
设有语言L(G(S))={a}+{b},下面描述该语言正确的文法是_______。
A.S→AB A→aA|ε B→Bb|b
B.S→AB| AS A→aA|a B→b
C.S→AB| AS A→aA|a B→Bb|ε
D.S→SA| A A→aAb|a
A.心室收缩时,血液对动脉管壁的侧压称为收缩压
B.心室舒张时,血液对动脉管壁的侧压称为舒张压
C.收缩压与舒张压之差,称为脉压
D.平均动脉压是收缩压和舒张压的平均值
E.其他因素不变,心率加快,脉压加大