题干

下图为细胞间信息传递的几种方式示意图,下面有关说法不正确的是(     )

A:图甲内分泌细胞产生的激素若是胰岛素,则靶细胞主要是肝细胞和肌细胞

B:图乙可以表示精子与卵细胞结合时的信息交流方式

C:图丙中靶细胞若是神经细胞,则细胞间可发生电信号→化学信号→电信号的转变

D:上图三种方式中信息的传递都需要细胞膜上载体的协助

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D

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Inspiration

    “Mama, when I grow up, I'm going to be one of those!” I said this after seeing the Capital Dancing Company perform when I was three. It was the first time that my1 took on a vivid form and acted as something important to start my training. As I grew older and was 2to more, my interests in the world of dance 3 varied but that little girl's dream of someday becoming a 4 in the company never left me. In the summer of 2005 when I was 18, I received the phone call which made that dream a 5I became a member of the company6 back to 1925.

    As I look back on that day now, it surely 7 any sense of reality. I believe I stayed in a state of pleasant disbelief8 I was halfway through rehearsals (排练) on my first day. I never actually9 to get the job. After being offered the position, I was completely10I remember shaking with excitement.

    Though I was absolutely thrilled with the change, it did not come without its fair share of 11. Through the strict rehearsal period of dancing six days a week, I found it vital to 12 up the material fast with every last bit of concentration. It is that extreme 13 to detail (细节) and stress on practice that set us 14.To then follow those high-energy rehearsals 15 a busy show schedule of up to five performances a day, I discovered a new 16 of the words “hard work.” What I thought was my physical 17 were pushed much further than I thought 18I learned to make each performance better than the last.

    Today, when I look at the unbelievable company that I have the great19 of being a part of, not only as a member, but as a dance captain, I see a 20 that has inspired not only generations of little girls but a splendid company that continues to develop and grow and inspires people every day to follow their dreams.