
【名词&注释】
花粉粒(pollen grain)、不符合(inconformity)、初生壁(primary wall)
[单选题]裸藻细胞大多只由原生质体组成。( )
A. 正确
B. 错误
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举一反三:
[单选题]花粉粒的壁分两层,即( )。
A. 初生壁和次生壁
B. 果胶层和初生壁
C. 外壁和内壁
D. 果胶层和次生壁
[单选题]桑葚为聚花果,食用其肉质的花萼。( )
A. 正确
B. 错误
[单选题]下列语句的括号中是补出的词语,补出后不符合文意的一项是( )
A. 目中有疵,不害于视,(则)不可灼也
B. 喉中有病,(苟)无害于息,不可凿也
C. 水激兴波,高下相临,差以寻常,(而)犹之为平
D. 遁逃奔走,(然)不死其难,不可谓勇
[单选题]We can learn from the text that the wheels of the Grout Portable .
A. were difficult to separate
B. could be split into 6 pieces
C. were fitted with solid tyres
D. were hard to carry on a train
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