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【单选题】
图示电路中,就其外特性而言,( )。 图1 图2 图3 图4 答( )A.
图2 与图3等效
B.
图1与图4等效
C.
图1 与图2等效
D.
图2 与图4等效
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举一反三
【多选题】下列关于宪法特征的表述中,正确的是( )。
A.
宪法规定国家生活中最根本最重要的方面
B.
宪法具有最高的法律效力
C.
宪法强调一切权利属于人民
D.
在制定和修改程序上，宪法比其他法律更严格
【多选题】How can the cell-cycle control system pause the cycle in various ways?
A.
The cell-cycle control system can transiently delay progress through the cycle at various transition points to ensure that the major events of the cycle occur only when the cell is fully prepared.
B.
At these transitions, the control system monitors the cell’s internal state and the conditions in its environment, before allowing the cell to continue through the cycle. For example, it allows entry into S phase only if environmental conditions are appropriate; it triggers mitosis only after the DNA has been completely replicated; and it initiates chromosome segregation only after the duplicated chromosomes are correctly aligned on the mitotic spindle.
C.
To accomplish these feats, the control system uses a combination of the mechanisms we have described. At the G 1 -to-S transition, it uses Cdk inhibitors to keep cells from entering S phase and replicating their DNA .
D.
At the G 2 -to-M transition, it suppresses the activation of M-Cdk by inhibiting the phosphatase required to activate the Cdk. And it can delay the exit from mitosis by inhibiting the activation of APC/C, thus preventing the degradation of M cyclin.
【简答题】从银行提取现金45000元,备发工资。 (本题只需录入总分类账户,不录入明细账)
【简答题】收到国家投入资金200000元,存入银行。12、发出甲材料110000元,其中制造A产品耗用55000元,制造B产品耗用45000元,车间一般耗用8000元,公司管理部门耗用2000元。 13、13日,收到B企业投入的专利权,双方协商作价50000元 14、以银行存款支付车间办公费300元,厂部招待费400元。 15、分配本月份职工工资,其中生产工人工资8000元,车间管理人员工资2000元,厂部...
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