题目内容

如果柱体轴向与某个投影面（），那么在这个投影面上，可反映出柱体径向截面上素线的实际位置和相邻素线的真实距离。

A. 平行
B. 垂直
C. 倾斜

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Given the following ALTER SEQUENCE statement: ALTER SEQUENCE myseq RESTART WITH 0 INCREMENT BY 1 NO MAXVALUE CACHE 5 ORDER Assuming that the sequence had reached a value of 100 prior to the RESTART, which of the following is true?（）

A. The next value will be 0 and the sequence will never use the values 101 to 105.
B. The next value will be 101 to ensure uniqueness between existing and newly generated sequence values.
C. Previously cached values are retained by DB2, and after the restart, will be used for values 101 to 105.
D. The next value will be 0 and DB2 will not ensure uniqueness between existing and newly generated values.

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如果柱体轴向与某个投影面（），那么在这个投影面上，可反映出柱体径向截面上素线的实际位置和相邻素线的真实距离。

A. 平行 B. 垂直 C. 倾斜

沼液浸种需要采用（）、（）的沼液。

胸导管注入（），右淋巴导管注入（）。

井下机电设备完好标准的原则要求是怎样的？

Given the following ALTER SEQUENCE statement: ALTER SEQUENCE myseq RESTART WITH 0 INCREMENT BY 1 NO MAXVALUE CACHE 5 ORDER Assuming that the sequence had reached a value of 100 prior to the RESTART, which of the following is true?（）

A. 平行
B. 垂直
C. 倾斜