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【单选题】
航海学中的地球形状用______来描述。
A.
地球自然表面围成的几何体
B.
大地球体
C.
地球椭圆体地球圆球体
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参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】下列关于综合布线的描述中，错误的是
A.
终端有高速率要求时，水平子系统可采用光纤直接铺设到桌面
B.
多介质信息插座是用于连接双绞线
C.
干线线缆铺设经常采用点对点结合和分支结合两种方式
D.
采用在管理子系统中更改、增加、交换、扩展线缆的方式来改变线缆路由
【单选题】下列关于课堂气氛的描述,错误的一项是:
A.
要想有良好的课堂气氛，首先要有良好的校风
B.
营造良好的课堂气氛，教师要发挥主导作用
C.
. 课堂气氛与教师的领导方式有关
D.
课堂气氛与教师对学生的期望有关
【单选题】下列关于正常成人心电图各波段的描述，错误的是
A.
P-R间期为0.12～0.2s
B.
P波时限＜0.11s
C.
Q-T间期为0.36～0.44s
D.
QRS波群时限为0.06～0.1s
E.
肢体导联S-T段上抬＜0.1mV
【单选题】Part ADirections: Read the following four texts．Answer the questions below each text by choosing A, B, C or D ．Mark your answers on ANSWER SHEET 1.It was the worst tragedy in maritime (航海的) history, s...
A.
It was attacked by Russian torpedoes.
B.
Most of its passengers were frozen to death.
C.
Its victims were mostly women and children.
D.
It caused the largest number of casualties.
【单选题】CD激子手性法中，正的激子手性描述为
A.
第一cotton效应为正，第二cotton效应为负
B.
cotton曲线为负
C.
第一cotton效应为负，第二cotton效应为正
D.
cotton曲线为正
【单选题】It was the worst tragedy in maritime (航海的) .history, six times more deadly than the Titanic. When the German cruise ship Wilhelm Gustloff was hit by torpedoes (鱼雷) fired from a Russian submarine in th...
A.
a strong ice storm tilted the ship
B.
the cruise ship sank all of a sudden
C.
the badly damaged ship Leaned toward one side
D.
the frightened passengers fought desperately for lifeboats