用章节测试中出现的那些词或词组填空 1. The R&D Department decided to conduct this season’s survey by means of ________. 2. Tom has submitted a proposal to the senior management for ________. 3. Of all the data we’ve __________, 90% is valid. 4. Most customers have a(n) _______ of our Item 4 over Item 5. 5. What I am concerned most is whether our _____________ are satisfied or not. 6. Before we decide to _______ this new product, we need to ensure that it has passed the security test. 7. The market loves our new smart phones because they find them quite _______.