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【判断题】
并联电路中各支路上的电流不一定相等。A.
正确
B.
错误
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】举例说明β－内酰胺抗生素的分类和代表药物
【简答题】菜豆最适宜在土层深厚、[填空(1)] 丰富、排水和通气性良好的壤土或沙壤土栽培，合适的土壤pH为[填空(2)] ，不耐[填空(3)] ，pH小于5.2容易发生重金属中毒而造成植株矮化，叶片[填空(4)] 。
【简答题】Section B Directions: Inthis section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage and the questions will be spoken only once, After you h...
【单选题】Listen to the passage and choose the best answer to each question. Question 1 passage 3.mp3:
A.
It was designed by an English engineer.
B.
It was built in the late 19 th century.
C.
It was purchased by the Royal family.
D.
It was equipped with rubber tyres.
【简答题】16-19.mp3: Section B Directions: In this section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage and the questions will be spoken only once....
【多选题】菜豆最适宜在土层深厚、 [填空(1)] 丰富、排水和通气性良好的壤土或沙壤土栽培，合适的土壤 pH 为 [填空(2)] ，不耐 [填空(3)] ， pH 小于 5.2 容易发生重金属中毒而造成植株矮化，叶片 [填空(4)] 。
A.
有机质
B.
6.0～7.0
C.
酸和盐碱
D.
失绿
【单选题】mp3: Choose the best answer.
A.
5 days a week.
B.
4 days a week.
C.
3 days a week.
D.
6 days a week.
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