可降低细胞内cAMP含量的酶是______。
A.腺苷酸环化酶
B.ATP酶
C.酪氨酸蛋白激酶
D.磷酸二酯酶
E.蛋白激酶
A.腺苷酸环化酶
B.ATP酶
C.酪氨酸蛋白激酶
D.磷酸二酯酶
E.蛋白激酶
第2题
Mrs. Smith wanted to buy ______ with the ten pound notes.
A.a lovely cat
B.a nice hat
C.a beautiful handbag
D.both B and C
第3题
Mrs. Evans wanted very much to see some film stars in the expensive restaurant.
A.真
B.False
第4题
Mrs. Smith wanted to buy ______ with the ten pound notes.
A.a lovely cat
B.a nice hat
C.a beautiful handbag
D.both B and C
第5题
(A Lesson in Living) Marguerite wanted to behave like a nice little lady in front of Mrs. Flowers.()
第7题
Mrs. Smith wanted to buy ______with the ten pound notes.
A.a lovely cat
B.a nice hat
C.a beautiful handbag
D.both B and C
第8题
A、could
B、be able to
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