皮皮学，免费搜题
登录
搜题
【单选题】
2005年打捞公司在南川岛海域调查沉船时意外发现一艘载有中国瓷器的古代沉船，该沉船位于海底的沉积层上。据调查，南川岛海底沉积层在公元1000年形成，因此。水下考古人员认为，此沉船不可能是公元850年开往南川岛的“征服号”沉船。 以下哪项如果为真．最严重地弱化上述论证?A.
历史学家发现，“征服号”既未到达其目的地，也未返回其出发的港口
B.
通过碳素技术测定。在南海沉积层发现的沉船是在公元800年建造的
C.
公元700—900年间某些失传的中国瓷器在南川岛海底沉船中发现
D.
在南川岛海底沉积层发现的沉船可能是搁在海底礁盘数百年后到沉积层上的
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】______ up drawing, he would have become an outstanding painter.
A.
Were he to take
B.
Was he taken
C.
If he was to take
D.
Had he taken
【简答题】考考你的阅读能力。正确的写“T”，错误的写“F”。 Mike is a traveler. He went to many places. Sometimes he travels by plane, sometimes he travels by train. Sometimes he takes a bus and sometimes he goes on foot. He is tired ...
【单选题】There w as so m uch n o i se i n t he c l a s s r oom t hat t he t each e r cou l dn ‟ t m ake h i m s e l f .
A.
heard
B.
hearing
C.
to hear
D.
hear
【单选题】Researchers find that when a person tells lies ______.
A.
he uses his unconscious mind
B.
he tends to make some small changes in his behavior
C.
he looks very serious
D.
his blood pressure increases measurably
相关题目：