皮皮学，免费搜题
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搜题
【单选题】
血液凝固的内源性与外源性激活途径的主要差别是A.
有无Ca2+参与
B.
凝血酶激活过程
C.
纤维蛋白形成过程
D.
是否需要维生素K的参与
E.
FX的激活物的形成过程
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】—We've lived here _____ 2001. —So you've lived here _____ about five years. [ ]
A.
since; for
B.
for; since
C.
for; for
D.
since; since
【单选题】There are some dangerous fishes in this river, and I've warned Jack ______ here. [ ]
A.
not to swim
B.
to not swim
C.
swim not to
D.
to swim not
【单选题】There are some dangerous fish in the river, and I've warned Jack _____ here. [ ]
A.
not to swim
B.
to not swim
C.
swim not to
D.
to swim not to