题目

某同学在实验室中发现了一瓶有刺激性气味的气体，根据气味判断可能是氨气，但不知是否确实是氨气，下列提供的方法中，你认为不能帮他检验是否为氨气的方法是（） A . 将湿润的红色石蕊试纸放在瓶口 B . 将湿润的酚酞试纸放在瓶口 C . 用蘸有浓盐酸的玻璃棒靠近瓶口 D . 将湿润的蓝色石蕊试纸放在瓶口convey, charge, react, accuse, profit, figure, discount, appeal to, get across, make sense 1. We can extend to you a special first order _______ of 2%. 2. So maybe it does ___________ to wrap up warmly before going outside. 3. The room in this hotel is large and comfortable. No wonder they _______ so much. 4. Please _______ my sympathy to your wife. 5. You see, do processing business will _______ both of us. 6. The two men’s life stories _______ different groups. 7. I spoke slowly, but my meaning didn’t _____________. 8. But the _______ has barely moved since then. 9. Local residents _______ angrily to the news. 10. For once, nobody could ________ them of lacking ambition.