问题
选择题
下列有关叙述，不正确的是[ ]
A．二倍体的单倍体一般高度不育
B．由配子发育成的个体称单倍体
C．多倍体一般营养物质含量高，叶片、种子、果实较大，茎杆粗壮
D．生物的体细胞中有几个染色体组就叫几倍体
答案
答案：D
搜题请搜索小程序“爱下问搜题”
下列有关叙述，不正确的是[ ]
A．二倍体的单倍体一般高度不育
B．由配子发育成的个体称单倍体
C．多倍体一般营养物质含量高，叶片、种子、果实较大，茎杆粗壮
D．生物的体细胞中有几个染色体组就叫几倍体
答案：D
| Cloze test. 完形填空。 |
| Jim and his sister Jane are new students 1 our school. They're 2 Australia (澳大利亚), so they 3 English. Jim is eleven 4 Jane is eleven 5 . Jim is beside 6 . We're in 7 4. Jim's sister is in 8 row, but she 9 beside LiuYing.Today is my birthday. They sent many presents 10 me. The football is from Jim. Who sent (送) the toy car to me? Do you know? It's from Jane. We are good friends. How happy (快乐)! |
| ( )1. A.in ( )2. A.in ( )3. A.speaks ( )4. A.and ( )5. A.too ( )6. A.I ( )7. A.row ( )8. A.the same ( )9. A.sit ( )10.A.from | B.at B.for B.in B.or B.in B.my B.rows B.same B.sits B.for | C.on C.from C.are C.too C.old C.me C.Row C.different C.sitting C.to | D.go D./ D.speak D./ D.but D.mine D.one row D.the D.sites D./ |