问题
单项选择题
助熔剂法合成祖母绿中的特征包裹体为：（）。
A.同生气液两相包裹体
B.固相-气相两相包裹体
C.指纹状气液两相包裹体
答案
参考答案：B
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助熔剂法合成祖母绿中的特征包裹体为：（）。
A.同生气液两相包裹体
B.固相-气相两相包裹体
C.指纹状气液两相包裹体
参考答案：B
| 阅读理解，根据表中内容，在短文中填入适当的单词或词组 | ||||||||||||||||||||||||
Tom and Jim live in the same street. They’re classmates. They often go to school together. Tom usually _______ (1) at around a quarter to seven and ________(2) at around a quarter past seven. He eats lunch at _______(3) o’clock at school. He usually _______(4) quite early at about ten to six. Jim usually gets up at around _______(5). He _______(6) eat breakfast in the morning. He eats lunch at _______(7) at home, because his home is near the school. Jim eats dinner quite _______(8) at about _______(9). Tom and Jim go to bed at the _______(10) time—at about twenty past nine. | ||||||||||||||||||||||||