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【单选题】
喷烟法雾滴直径________。
A.
小于60μm
B.
小于30μm
C.
小于50μm
D.
小于45μm
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参考答案：
举一反三
【单选题】Space-Age Archeology It's a strange partnership, but a very effective one: Satellites and space-shuttle-carried radar are helping archeologists. How? By 'seeing' through sand or through treetops to lo...
A.
a new stretch of the Sahara desert.
B.
traces of ancient riverbeds under the Sahara Desert.
C.
some traditional archeological tools in the Sahara Desert.
D.
a mountain beneath the Sahara Desert.
查看完整题目与答案
【单选题】Archeology Archeology, the branch of anthropology that is devoted to the study of the human past, often focuses on the period before people began to keep written records. Archeologists study the origi...
A.
still living
B.
very strange
C.
no longer existing
D.
extremely dangerous
查看完整题目与答案
【单选题】According to Paragraph 1, which of the following statements about archeology and other branches of anthropology is true?
A.
Archeology and other branches of anthropology are totally different.
B.
Archeology is more closely related to human behavior. research.
C.
Their difference mainly lies in their different research materials.
D.
They have the same research areas about human behavior.
查看完整题目与答案
【单选题】小儿1岁未接种过卡介苗,PPD阳性则提示
A.
近2～3周内感染结核
B.
体内已有免疫力，不会再感染结核
C.
体内有活动结核
D.
受过结核菌感染，不一定有活动结核
E.
对结核无免疫力，不一定有活动结核
查看完整题目与答案
【单选题】Space-Age Archeology It's a strange partnership, but a very effective one: Satellites and space-shuttle-carried radar are helping archeologists. How? By 'seeing' through sand or through treetops to lo...
A.
a new stretch of the Sahara desert
B.
traces of ancient riverbeds under the Sahara Desert
C.
some traditional archeological tools in the Sahara Desert
D.
a mountain beneath the Sahara Desert
查看完整题目与答案
【简答题】The major problems faced by archeology is______.
查看完整题目与答案
【单选题】国家推行计划生育，使人口的增长同经济和（）发展计划相适应。
A.
卫生医疗
B.
教育
C.
社会
查看完整题目与答案
【单选题】archeology [B:ki5RlEdVi]
A.
adj. 考古学的
B.
n. 考古学家
C.
adj. 远古的, 旧的
D.
n. 考古学
查看完整题目与答案
【单选题】Why did the governments of America and the Soviet Union fund the study of nuclear physics rather than underwater archeology?
A.
Because they assumed that studying underwater archeology was not profitable
B.
Because they assumed that studying nuclear physics would enable them to develop nuclear weapons that could help win wars.
C.
Because they assumed that studying unclear physics would be beneficial in terms of producing electricity.
查看完整题目与答案
【单选题】Why does the author compare archeology to doing a jigsaw puzzle?
A.
To indicate what archeology contributes to us.
B.
To show how difficult doing archeology is.
C.
To explain the challenge and charm of archeology.
D.
To display how people do archeology research.
查看完整题目与答案
相关题目：
【单选题】Space-Age Archeology It's a strange partnership, but a very effective one: Satellites and space-shuttle-carried radar are helping archeologists. How? By 'seeing' through sand or through treetops to lo...
A.
a new stretch of the Sahara desert.
B.
traces of ancient riverbeds under the Sahara Desert.
C.
some traditional archeological tools in the Sahara Desert.
D.
a mountain beneath the Sahara Desert.
查看完整题目与答案
【单选题】Archeology Archeology, the branch of anthropology that is devoted to the study of the human past, often focuses on the period before people began to keep written records. Archeologists study the origi...
A.
still living
B.
very strange
C.
no longer existing
D.
extremely dangerous
查看完整题目与答案
【单选题】According to Paragraph 1, which of the following statements about archeology and other branches of anthropology is true?
A.
Archeology and other branches of anthropology are totally different.
B.
Archeology is more closely related to human behavior. research.
C.
Their difference mainly lies in their different research materials.
D.
They have the same research areas about human behavior.
查看完整题目与答案
【单选题】小儿1岁未接种过卡介苗,PPD阳性则提示
A.
近2～3周内感染结核
B.
体内已有免疫力，不会再感染结核
C.
体内有活动结核
D.
受过结核菌感染，不一定有活动结核
E.
对结核无免疫力，不一定有活动结核
查看完整题目与答案
【单选题】Space-Age Archeology It's a strange partnership, but a very effective one: Satellites and space-shuttle-carried radar are helping archeologists. How? By 'seeing' through sand or through treetops to lo...
A.
a new stretch of the Sahara desert
B.
traces of ancient riverbeds under the Sahara Desert
C.
some traditional archeological tools in the Sahara Desert
D.
a mountain beneath the Sahara Desert
查看完整题目与答案
【简答题】The major problems faced by archeology is______.
查看完整题目与答案
【单选题】国家推行计划生育，使人口的增长同经济和（）发展计划相适应。
A.
卫生医疗
B.
教育
C.
社会
查看完整题目与答案
【单选题】archeology [B:ki5RlEdVi]
A.
adj. 考古学的
B.
n. 考古学家
C.
adj. 远古的, 旧的
D.
n. 考古学
查看完整题目与答案
【单选题】Why did the governments of America and the Soviet Union fund the study of nuclear physics rather than underwater archeology?
A.
Because they assumed that studying underwater archeology was not profitable
B.
Because they assumed that studying nuclear physics would enable them to develop nuclear weapons that could help win wars.
C.
Because they assumed that studying unclear physics would be beneficial in terms of producing electricity.
查看完整题目与答案
【单选题】Why does the author compare archeology to doing a jigsaw puzzle?
A.
To indicate what archeology contributes to us.
B.
To show how difficult doing archeology is.
C.
To explain the challenge and charm of archeology.
D.
To display how people do archeology research.
查看完整题目与答案
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