【名词&注释】
染色体(chromosome)、汉武帝(emperor wu)、嫁接成活率(graft living rate)、孢子体(sporophyte)
[单选题]地钱的下列结构中，属于孢子体(sporophyte)世代(染色体为2n)的是( )。
A. 胞芽
B. 孢蒴
C. 假根
D. 精子器
查看答案&解析
举一反三：
[单选题]Why was the woman at the airport?
A. She was traveling on business.
B. She was seeing the man off.
C. She was leaving for Greece.
[单选题]嫁接的成活率与两植物的亲缘关系有关，一般来说，( )间的嫁接成活率最大。
A. 品种
B. 种
C. 属
D. 科
[单选题]《史记》载：汉武帝时，“公孙弘以《春秋》白衣为天子三公，封以平津侯。天下之学士靡然乡风矣”。该材料主要表明
A. 汉武帝广泛吸纳人才
B. 平民将相大量涌现
C. 儒学在民间开始兴起
D. 儒学地位显著提高
[单选题]
A. relief
B. return
C. vain
D. control
[多选题]Directions: Beneath each of the following sentences there are four choices markedA,B, C and D. Choose the one answer that best completes the sentence.
A. Example:
B. The wild flowers looked like a soft orange blanket the desert.
C. covering B． covered C． cover D． to cover
E. 21. Listen! Do you hear someone for help?
F. calling
G. call
H. to call
I. called
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