【单选题】正常情况下,脉搏数(脉率)与心脏搏动的次数(心率)一致,下面关于脉搏说法错误的是:()
【简答题】极端低温对植物的伤害的表现形式分为__伤害和__伤害两种类型,直接伤害一般表现为__、__和__,间接伤害常见的有__、__和__。
【多选题】以下可以修复周跳的情形包括:()
C.
接收机被手机信号干扰突然失锁,干扰源移除后恢复数据观测。
D.
接收机被周围树木遮挡信号失锁,干扰移除后恢复数据观测。
【单选题】Jason_____( )____ an hour swimming every day.
【单选题】Jason's parents ...
A.
bought a computer because they wanted their son to become an IT expert.
B.
did not want their son to be an outsider.
C.
thought that a computer could help Jason at school.
【单选题】毛笔素描的纸张选用( )、毛边纸或表面起伏的纸张。