皮皮学，免费搜题
登录
搜题
【简答题】
lesson035.mp3: Directions : This drill is forpractice in writing numbers with seven to nine digits. For easy reading andwriting, numbers of more than four digits are separated by commas into groupsof three digits each, for example, 2, 347, 221. Listen carefully. Say thenumber over to yourself after you hear it. Then write it down as rapidly as youcan.
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
【多选题】典型调查的优点主要体现在
A.
调查对象少，可作深人细致的调查研究，以便深刻揭示事物的本质和规律
B.
可节省调查的人力、物力和财力
C.
节约时间，可迅速取得调查结果，从而快速了解市场情况
D.
可以全面的了解调查对象的所有情况
【单选题】In the fourth paragraph, the author implies that imagination is most important to scientists when they ______.
A.
gather known facts
B.
formulate possible solutions to a problem
C.
evaluate previous work on a problem
D.
close an investigation
【单选题】Modern experts ________ healthy eating suggest we eat more vegetables. prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
with prefix="o" ns="urn:schemas-microsoft-com:office:office"? ?xml:namespace>
B.
of prefix="o" ns="urn:schemas-microsoft-com:office:office"? ?xml:namespace>
C.
on prefix="o" ns="urn:schemas-microsoft-com:office:office"? ?xml:namespace>
D.
above
【简答题】单词拼写。 1. The a_______ of 4,5 and 9 is 6. 2. He got into a p _________when he found the house broken into. 3. It is because he was doing i_________ things that the police arrested him 4. Some poems tr...
【单选题】Modern experts ________ healthy eating suggest we eat more vegetables.
A.
with
B.
of
C.
on
D.
above
【单选题】如果直线位于第四象限,坐标象限角为北偏西30°30′00′′,则其坐标方位角为( )
A.
30°30′00″
B.
149°30′00″
C.
210°30′00″
D.
329°30′00″
【单选题】下列关于碳钢的力学性能,叙述错误的是( )
A.
碳钢的强度、塑性、硬度、韧性和疲劳强度都是在静载荷作用下测试的
B.
碳钢的强度和塑性可以通过拉伸试验来测定
C.
碳钢的强度主要有屈服强度和抗拉强度两个指标，塑性主要有断后伸长率和断面收缩率两个指标
D.
碳钢削加工性能的好坏通过硬度和韧性进行判断
相关题目：