这种四肽彻底水解时，不可能产生的氨基酸是（   ）

    This is a story about a famous American woman. Her name is Helen Keller. When she was only nineteen months old, she got an illness. It made her blind(瞎的) and deaf (聋的). She couldn't see or hear anything, so she couldn't learn to speak. When she was six, a young teacher came and taught her to read and write. Her name was Ann Sullivan.

    Later, when she was ten, Miss Sullivan took her to another teacher, Sarah Fuller. Sarah Fuller taught her to speak. Helen put her fingers on Miss Fuller's face and into her mouth. In this way, she learned to speak. She went to school and became famous because she was one of the first blind and deaf persons to learn to speak. She began to write books and to help the blind in many parts of the world. Her hard work and her courage(勇气) made people in all countries love her.

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小明寒假从澳大利亚旅游归来，以下关于他的见闻，你认为可信的是 (    )

某宪法规定：（总统）由参议院与众议院联合而成的国民议会依绝大多数票选出……参议院组成最高法院，以审判共和国总统或部长及审理危害国家安全案。该宪法是(     )