正确答案: D
群落结构已定型
题目:符合群落发育盛期特征的是( )
解析:D
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举一反三的答案和解析:
[单选题]
farther
解析:
[单选题]In the last sentence of the second paragraph, "the higher places on earth" refers to ______.
the great continent
解析:44.答案为D。根据第二段最后一句及第三段第一句,covering its whole surface except for the higher places on earth that had been formed from the lighter rock materials.In 1970,scientists had pieced together evidence that the lighter rock materials had formed one huge continent by a vast ocean可知“较高的地方”不可能指选项B和C;选项A文中未提及。
[单选题]活化部分凝血活酶时间(APTT)超过正常对照多少为异常 ( )
>正常对照10s
[单选题]下肢的浅静脉有 ( )
大隐静脉
[单选题]Passage ThreeNine-year-old Louis Pasteur rushed into the little house, his face white.
a degree which is the highest in science
解析:此题为词义题。根据语境判断,巴斯德获得的Doctor of Science是科学的最高学位,即博士学位。故选择A为答案。
[单选题]膝关节前交叉韧带的作用是 ( )
限制胫骨向前移动
[单选题]下列概念中,由德国科学家海克尔首次提出的是( )
生态学
[多选题]在消化管中,蛋白质的消化与以下哪几种酶有关 ( )
糜蛋白酶
胃蛋白酶
胰蛋白酶
解析:ACD