1.Reasearchers have questioned the use of costly and experemental diagostic tests to identify food allergies, such as milk, that supposedly disrupt normal behavior.
A. to identify food allergies , such as
B. to identify food allergies, like
C. to identify food allegies, such as to
D. for identifying food allergies , like that of
E. for identifying food allergies, such as for
答案：C
我的问题是为什么用such as to 而不是 such as
2.Unlike other arachinids, which have their nerve cells evenly distributed along their bodies, the scorpion's nerve cells are clustered in its head like a mammal's.
A .....
B. bodies, the scorpion's head had a cluster of nerve cells, as mammal does
C. body, the scorpions has a cluster of nerve cells in its head, as mammal does
D. body, nerve cells are clustered in the scorpion's head, like a mammal's
E. body, a cluster of nerve cells is in the scorpion's head, like a mammal's
答案 A
我的问题是为什么用bodies
谢谢了~~~
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