城市计算的框架包含哪四个层面？

When he found that his house had been robbed, he immedi...

单项选择题When he found that his house had been robbed, he immediately _______ detectives to conduct a fresh inquiry.
A、called in
B、called forth
C、called up
D、called by

维持子宫前屈的主要韧带是A、骨盆漏斗韧带B、子宫阔韧带C、子宫主韧带D、子宫圆韧带E、骶子宫韧带

单项选择题维持子宫前屈的主要韧带是A、骨盆漏斗韧带B、子宫阔韧带C、子宫主韧带D、子宫圆韧带E、骶子宫韧带

链传动张紧的目的，主要是为了增加正压力

判断题链传动张紧的目的，主要是为了增加正压力