皮皮学，免费搜题
登录
搜题
【单选题】
长度为3的素数等差数列的共同的公差素因素是几?A.
6.0
B.
3.0
C.
2.0
D.
1.0
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
【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.
【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
【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.
【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
【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
【简答题】The major problems faced by archeology is______.
【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.
【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.
相关题目：