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【单选题】
tf.train.Coordinator中join函数的功能是（）A.
等待其他线程结束，其他线程关闭之后，join函数可以返回
B.
将一系列线程加入队列
C.
将某一线程加入队列
D.
等待其他线程结束之后，将某一线程加入队列
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【单选题】For all their great diversity of shapes and sizes, glaciers can be divided into two essential types: valley glaciers, which flow downhill from mountains and are shaped by the constraints of topography...
A.
Glaciers are diversified in shapes and sizes.
B.
Glaciers can be divided into valley glaciers and ice sheets.
C.
Glaciers are remnants of great shrouds of ice that covered the earth years ago.
D.
Few glaciers have a long history.
【单选题】The Organized Traveller's Checklist Here's a step-by-step guide to accomplishing the essentials in the weeks, days, and hours before you leave on vacation. Eight Weeks Ahead If you're going out of the...
A.
A travel agency.
B.
A travel health specialist.
C.
Passports personnel.
D.
Birth certificates personnel.
【单选题】听力原文：Compared to a meat-centered diet, meatless meals can easily supply all the essential nutrients our body requires, and cost only 20% to 30% as much. (30)
A.
A diet with meat only is not enough for our body.
B.
A diet with vegetables can sometimes be very costly.
C.
Meatless meals are equally nutritious and less expensive.
D.
Meatless meals cannot provide all the essential nutrients.
【简答题】With all the wars, fighting and sadness in the world today, it's not only necessary, but also essential to have a good sense of humor just to help us get through each and every day of our lives. Putti...
【单选题】回答下列各题： The Importance of Good Communications Effective communication is essential for all organizations. It links the activities of the various parts of the organization and ensures that everyone is ...
A.
some feedback on their job performance.
B.
an explanation of how company targets have been set.
C.
information on promotion prospects within the company.
D.
an indication of which duties they can expect assistance with.
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