正压式空气呼吸器的压力表外壳应有橡胶防护套,外壳直径不应大于()mm。
A.30.0
B.40.0
C.50.0
D.60.0
参考答案:D
An analyst does research about asset classes. When an investor defines an asset class for the purpose of asset allocation, which of the following statements is most accurate The investor should ensure that assets in one class:()
A. have high paired correlations with other asset classes and relatively homogeneous.
B. have low paired correlations with other asset classesand relatively heterogeneous.
C. have low paired correlations with other asset classesand relatively homogeneous.
在AdobeInDesignCS2中向对象应用文本绕排时,InDesign会自动在对象周围创建一个()进入的边界。