第1题:
溶组织内阿米巴
A.只有滋养体
B.有滋养体和包囊
C.虫媒传播有世代交替
D.虫媒传播无世代交替
E.循环传播型
第2题:
If clearance between a piston and the cylinder wall is excessive, piston slap will occur. The slap itself is caused by_____.
A.alternation of side thrust
B.a breakdown of the lube oil film on the cylinder
C.worn piston boss piston pin bearings
D.fluctuating gas pressure in tile combustion space
第3题:
此题为判断题(对,错)。
第4题:
植物的世代交替是在生活史中具有()和()相互交替的现象。地钱世代交替的特点是()发达而独立生活,()简单而寄生。
第5题:
为了保证CP和MP两侧”Generation”的兼容性,下列哪个值必须要相同:()
第6题:
The best stories attract their audience because they______.
A.present a believable picture
B.express the audience's emotions
C.are translated into other languages
D.are retold from generation to generation
第7题:
在藻类植物生活史中,核相交替与世代交替的关系正确的是()
第8题:
Which of the following statements is TRUE according to the reading passage?
A. Parents should be more tolerable towards their children.
B. The younger generation should value the older generation for their wisdom.
C. The generation gap is partly created by the older generation.
D. The generation gap should be avoidable in American society.
第9题:
具有核相交替的植物一定有世代交替,有世代交替的植物不一定有核相交替。
第10题:
什么叫世代交替?是否所有植物都具世代交替?具有有性生殖的植物是否一定有世代交替?