二、英语短语翻译汉语10. sample and hold circuit______

Hold the（ ）between the thumb and second finger, support the base with the third finger and hold it steady. A: sample tea cup B: aroma-smelling cup C: tea bowl D: tea holder

The quantization process<br/>____. A: converts the<br/>sample-and-hold output to binary code B: converts a sample impulse<br/>to a level C: converts a sequence of<br/>binary codes to a reconstructed analog signal D: filters out unwanted<br/>frequencies before sampling takes place

Counter sample can also be called ( ) A: duplicate sample B: sealed sample C: return sample D: reference sample

Counter<br/>sample can also be called _____________.() A: duplicate<br/>sample B: sealed<br/>sample C: confirmed<br/>sample D: contracted<br/>sample

The sample made by the seller according to the buyer’s, and then sent to and confirmed by the buyer is called __________. A: duplicate sample B: returning sample C: original sample D: copy sample

In international trade, according to supplier of the sample, sales by sample can be divided into A: Sales by Seller’s Sample B: Sales by Buyer’s Sample C: Sales by Counter Sample D: Sale by Descriptions or Illustrations E: Sales by Reference Sample

Which are the common used ways to sampling? A: Simple random sample without replacement B: Simple random sample with replacement C: Stratified sample D: Cluster sample

23. Sale by sample includes sale by seller’s sample, sale by buyer’s sample and sale by duplicate sample.

In “ sale by the seller’s sample”, _______ sample is ultimately in the hand of the seller.