如果企业速动比率很小，下列结论成立的是（）。A、企业流动资产占用过多 B、企业短期偿

一般来说，如果心须重新进行广告策划过程，则可能是由于（）造成的。

A.衡量效果所用的方法不当

B.发布时机不当

C.调查资料有误

D.媒体选择不当

空调风管高压系统应全数进行（）。

加热炉炉管结焦的原因有哪些？

Which of the following statements regarding forward contracts is TRUE()

A. The buyer of a forward contract has agreed to deliver the underlying asset at a specific price and date in the future whereas the seller has agreed to accept delivery of the underlying at the same agreed upon price and date. 

B. When prices increase, the buyer of a forward contract gains and the seller of a forward contract loses. 

C. The buyer of a forward contract gains when prices decrease, and the seller of a forward contract loses when prices increase.

在美国开发了称为PCS1900的一个GSM变体。为适应更大数据容量的GSM已做了称为GPRS和EDGE的某些扩展。（）