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【单选题】
可作为肿瘤定性诊断的检查是A.
CT检查
B.
B超检查
C.
X线检查
D.
MRI显像
E.
病理检查
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皮皮学刷刷变学霸
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【单选题】Water evaporates or steam condenses at the saturation temperature, which depends upon the pressure, the higher the pressure （） the saturation temperature.
A.
the more
B.
the higher
C.
the lower
D.
the highest
【单选题】When a sudden increase in steam demand occurs from the boiler, the water level in the drum at the higher pressure will .
A.
rise quickly
B.
rise slowly
C.
drop quickly
D.
drop slowly
【简答题】①分数单位是 1 8 的最简真分数有______个，最简分数的分子和分母的公约数是______． ② a 7 是真分数， a 6 是假分数，a是______．
【单选题】The higher the water turbulence such as wave action, the higher the relative number of:
A.
Planktonic species.
B.
Deposit feeders.
C.
Suspension feeders.
D.
Primary producers.
【判断题】For dissolved oxygen ( DO), the higher the standard index, the better the water quality.
A.
正确
B.
错误
【简答题】有分母都是10的真分数、假分数、带分数各一个，而它们相邻两数的大小只相差一个分数单位．这三个分数各是多少？
【单选题】太阳电池分选机所配空气压缩机正确开机顺序为______。
A.
供气阀-电机开关-电路开关
B.
电机开关-电路开关-供气阀
C.
电路开关-供气阀-电机开关
D.
电路开关-电机开关-供气阀
【单选题】接待计划是组团旅行社委派各地方接待社组织落实旅游团活动的( )安排,是导游人员了解该旅游团基本情况和安排活动日程的主要依据。
A.
组织性
B.
文件性
C.
契约性
D.
主导性
【单选题】__________________________________ 5 Around 1400 BC (about 3,400 years ago), water clocks were invented in Egypt. The name for a water clock is clepsydra. A water clock was made of two containers of w...
A.
Dividing the day into hours, minutes,and seconds
B.
Using the sun
C.
Dividing the year into months and days
D.
Sundial clocks
E.
Water clocks
F.
Pendulum clocks
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