| 1. | The investigators were confronted by a wall of silence .
调查人员碰了壁，谁也不回答他们的问题。 |
| 2. | The investigators also turned up evidence of battered wives .
调查人员还提出了妇女受折磨的证据。 |
| 3. | Testimony by league of nations investigators left little doubt .
国联调查人员的报告使人没有怀疑。 |
| 4. | These investigators showed that betaine caused a growth response .
这些研究者证明：甜菜碱导致生长反应。 |
| 5. | Many early investigators were discouraged by reproducible results .
由于结果的重复性，许多早期的研究者丧失了信心。 |
| 6. | Many people died in these crashes, and this has puzzled investigators .
许多人死于这样的事故，这问题始终为调查人员迷惑不解。 |
| 7. | The investigators were content with what they constructed as "defined media" .
研究者们满足于他们认为的所谓“规定的培养基”。 |
| 8. | Many investigators had grapple with the problem, usually with poor results .
许多研究人员曾设法解决这个问题，但是往往没有好结果。 |
| 9. | All investigators in mass transfer assumed plug flow of gas in packed beds .
所有传递问题的研究者都假定在填充床层中的气体为活塞流。 |
| 10. | Electricity appeared to its early investigators as an extraordinary phenomenon .
在早期从事研究工作的人看来，电似乎是一种很不寻常的现象。 |
