单项选择题下列脉律的描述,哪项是正确的 A. 脉搏的节律可反映心脏的节律 B. 正常人的脉律一定规则 C. 脉搏短绌,最常见于期前收缩 D. 窦性心律不齐时出现脱落脉 E. 老年人常出现窦性心律不齐
单项选择题Which of the following narrations on English teaching langauge is incorrect? ()A. English teachers use English to organize teaching in classroom.B. English teaching language is a special language system mainly in oral form.C. English is just a means of work for English teachers.D. English is also a form of listening and speaking training for students.
单项选择题旅客远距离前往或离开飞机时,如穿越停机坪、站台或前往休息室,需要轮椅,但能够自行上下客梯,在机舱内可以自己走到座位上,其特殊旅客服务代码为( )。 A. WCHS B. WCHR C. WCHC D. STCR
单项选择题关于秦朝的“赀刑”下列理解正确的是:( ) A、赀刑属于赎刑 B、赀刑指罚交财物或罚徭戍 C、赀刑中赀布最常见 D、赀刑不适用于官吏
单项选择题地胶属于