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问题 单项选择题

如果潜油电泵井产能较低，特别是在较寒冷地区低温时节、出液较稠，需要掺水伴热时，就可改（）生产流程为单管生产流程。

A、双管

B、多管

C、三管

D、油管

答案

参考答案：A

单项选择题

A typical (36) language contains an applicative sub-language which approximates the mathematical abstractions of "timeless" functions applied to’ "spaceless" values, where the actual operation sequences and use of storage space during expression evaluation are organized behind the (37) . In this setting, values are data structures of low volume, typically a few computer words or less, which means that an illusion of spacelessness can be realized by having (38) results during expression evaluation stored at the discretion of the language implementation, and effecting parameter (39) and (40) operations through value copying.

A．foreground

B．background

C．screen

D．scenes
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单项选择题 A1/A2型题

小儿麻痹症初起邪在：（）

A.肠胃

B.肺胃

C.经络

D.脾胃

E.四肢
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