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【单选题】
保护植物老茎的组织是（）。A.
木栓层
B.
皮层
C.
表皮
D.
栓内层
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皮皮学刷刷变学霸
举一反三
【单选题】The Income Tax Act of 1894 did not last long because U.S. Supreme Court thought it against the Constitution.
A.
Y
B.
N
C.
NG
【单选题】The court thought Mrs. Blunsden could not keep animals because ______.
A.
her dogs and cats were kept together
B.
she didn't take animals for walks
C.
her room for animals was too small
【单选题】以下有关模板安装工程安全技术措施正确的是( )。
A.
竖向模板和支架支承部分安装在基土上时，应加设垫板
B.
现浇钢筋混凝土梁、板，当跨度大于5m时，模板应起拱
C.
当层间高度大于4m时，宜选用桁架支模或多层支架支模
D.
模板安装作业高度超过2.5m时，必须搭设脚手架或平台
【单选题】The court thought Ms Blunsden could not keep animals because ______.
A.
her dogs and cats were kept together
B.
she didn't take animals for walks
C.
her room for animals was too small
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