举一反三
- 要提高萃取分离的效率，可（）。 A: 多加萃取剂 B: 升高温度 C: 多次萃取 D: 降低温
- 多级错流萃取的特点是：[input=type:blank,size:4][/input]、[input=type:blank,size:4][/input]、[input=type:blank,size:4][/input]。
- Salutation Signature Complimentary Close Body of the letter Date 1.[input=type:blank,size:4][/input] 2.[input=type:blank,size:4][/input] 3.[input=type:blank,size:4][/input] 4.[input=type:blank,size:4][/input] 5.[input=type:blank,size:4][/input]
- Watch Video 1 and complete the following mind map.[img=515x401]177c93b6944b60e.png[/img][img=507x354]177c93b82794122.png[/img]1.[input=type:blank,size:4][/input]2.[input=type:blank,size:4][/input]3.[input=type:blank,size:4][/input]4.[input=type:blank,size:4][/input]5.[input=type:blank,size:4][/input]6.[input=type:blank,size:4][/input]7.[input=type:blank,size:4][/input]8.[input=type:blank,size:4][/input]
- Watch the video 1 and complete the following table by identifying the problem, the evaluation, and the possible solutions to the problem.[img=605x388]177ccaf887702f0.png[/img]1.[input=type:blank,size:4][/input]2.[input=type:blank,size:4][/input]3.[input=type:blank,size:4][/input]4.[input=type:blank,size:4][/input]5.[input=type:blank,size:4][/input]6.[input=type:blank,size:4][/input]7.[input=type:blank,size:4][/input]8.[input=type:blank,size:4][/input]9.[input=type:blank,size:4][/input]10.[input=type:blank,size:4][/input]11.[input=type:blank,size:4][/input]12.[input=type:blank,size:4][/input]
内容
- 0
The main idea is often presented at the beginning of a lecture or presentation and restated at the end. Watch Video 1 and identify the main idea and key points of the lecture.[img=1100x200]177ec0da813b106.png[/img]1.[input=type:blank,size:4][/input]2.[input=type:blank,size:4][/input]3.[input=type:blank,size:4][/input]4.[input=type:blank,size:4][/input]5.[input=type:blank,size:4][/input]6.[input=type:blank,size:4][/input][br][/br]
- 1
提高构件疲劳极限的主要措施有：1) [input=type:blank,size:4][/input]；2) [input=type:blank,size:4][/input]；3) [input=type:blank,size:4][/input]。
- 2
Decide whether the sentences are formal or informal. If the sentence is formal, write down F. If the sentence is informal, write down I.[img=604x361]177cce468c91f37.png[/img]1.[input=type:blank,size:4][/input]2.[input=type:blank,size:4][/input]3.[input=type:blank,size:4][/input]4.[input=type:blank,size:4][/input]5.[input=type:blank,size:4][/input]6.[input=type:blank,size:4][/input]7.[input=type:blank,size:4][/input]8.[input=type:blank,size:4][/input]9.[input=type:blank,size:4][/input]10.[input=type:blank,size:4][/input]
- 3
教学论主要研究（1）[input=type:blank,size:4][/input]、(2)[input=type:blank,size:4][/input]、(3)[input=type:blank,size:4][/input]、(4)[input=type:blank,size:4][/input]、(5)[input=type:blank,size:4][/input]
- 4
A student who watched Video 2 made rough notes while listening. After that, she organized them so that they were easy to understand. With the help of your notes, complete the revised version of her notes of the discussion by putting appropriate words in each gap.[img=498x471]177c91069c3e918.png[/img]1.[input=type:blank,size:4][/input]2.[input=type:blank,size:4][/input]3.[input=type:blank,size:4][/input]4.[input=type:blank,size:4][/input]5.[input=type:blank,size:4][/input]6.[input=type:blank,size:4][/input]7.[input=type:blank,size:4][/input]8.[input=type:blank,size:4][/input]9.[input=type:blank,size:4][/input]10.[input=type:blank,size:4][/input]11.[input=type:blank,size:4][/input]12.[input=type:blank,size:4][/input]13.[input=type:blank,size:4][/input]14.[input=type:blank,size:4][/input]15.[input=type:blank,size:4][/input]16.[input=type:blank,size:4][/input]17.[input=type:blank,size:4][/input]18.[input=type:blank,size:4][/input]19.[input=type:blank,size:4][/input]20.[input=type:blank,size:4][/input]