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【单选题】
如图所示,是托里拆利实验的规范操作过程,关于托里拆利实验,下面说法错误的是( )A.
实验中玻璃管内水银面的上方有少量空气
B.
是大气压支持玻璃管内的水银柱不会下落
C.
大气压的数值等于这段水银柱产生的压强
D.
换用更粗一些的等长玻璃管,管内外水银面高度差将不变
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【单选题】【D9】 JOSE: PAMELA, CAN YOU COME TO A MEETING ON FRIDAY? PAMELA: I'M NOT SUR E.【D8】______WHEN ARE YOU HAVING IT? JOSE: 【D9】______ PAMELA: LET ME GET BACK TO YOU IN A FEW MINUTES. JOSE: SUR E. IF I'M NO...
A.
LET ME CHECK MY SCHEDUL E.
B.
SURE THIN G.
C.
I DON'T KNOW.
D.
WE' RE PLANNING IT AROUND NOO N.
【单选题】The placenta ( 胎座 ) of the cucumber ( 黄瓜 ) is ( ).
A.
axial placenta ( 中轴胎座 )
B.
parietal placenta ( 侧膜胎座 )
C.
lamellate placenta ( 片状胎座 )
D.
marginal placenta ( 边缘胎座 )
【单选题】Now and again I have had horrible dreams, but not enough of them to make me Jose my delight in dreams. To begin with, I like the idea of dreaming, of going to bed and lying still and then, by some que...
A.
when the author has wonderful dreams, he will be happy for the whole day.
B.
if the author had too much terrible dreams, he would feel annoyed.
C.
the author wishes that he could make no fuss about any holiday.
D.
the author wishes that he could have more strange dreams.
【简答题】胎盘placenta
【单选题】Placenta previa is associated with all except.
A.
Larger placenta
B.
Previous cesarean section scar
C.
Primigravida
D.
Previous placenta previa
【单选题】【D8】 JOSE: PAMELA, CAN YOU COME TO A MEETING ON FRIDAY? PAMELA: I'M NOT SUR E.【D8】______WHEN ARE YOU HAVING IT? JOSE: 【D9】______ PAMELA: LET ME GET BACK TO YOU IN A FEW MINUTES. JOSE: SUR E. IF I'M NO...
A.
LET ME CHECK MY SCHEDUL E.
B.
SURE THIN G.
C.
I DON'T KNOW.
D.
WE' RE PLANNING IT AROUND NOO N.
【简答题】友元访问类对象的成员时使用（ ）。
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